How to Diagnosis the Maintenance (Maintenance Procedures (avant)) Audi A4 B8

ENGINE OVERVIEW

TYPE PLATE AND VIN

A - Type Plate

It is secured on the right suspension strut tower.

B - Vehicle Identification Number

It is stamped in the upper wheel housing right longitudinal member near the reservoir.

Decoding VINs

Vehicle Data Label

The vehicle data label is in the customer's Maintenance booklet and in the vehicle in the spare wheel recess or on the floor panel.

The label contains the following vehicle data

Scheme 101

1 - Vehicle Identification Number (VIN)

2 - Model identification number/Production control number

3 - Model explanation

4 - Engine output/Emissions standard/Transmission

5 - Engine and transmission codes (no information for certain countries)

6 - Paint number/interior equipment identification number

7 - Optional equipment identification numbers

8 - Curb weight/Consumption/CO 2 emissions (no information for certain countries)

Engine Code and Engine Identification

Note. The "engine code" is on the vehicle data label in the Maintenance booklet and in the spare wheel recess or on the floor panel. A label with "engine code" and "serial number" is also attached to toothed belt guard.

4-Cylinder TFSI

Engine number ("engine code" and "serial number") is located at front of engine/transmission connecting point.

V6 3.0L TFSI and 3.2L FSI

Engine number ("engine code" and "serial number") is located at left front of cylinder block -arrow-.

Scheme 102

RAISING VEHICLE

Floor Jack

Always use a suitable rubber or wooden block between the jack and the vehicle.

A floor jack must be attached only at the mounting points depicted in the illustration.

Do not lift the vehicle at the engine oil pan, transmission, or on front or rear axles as serious damage may result.

Workshop Hoist

Before driving on to a lifting platform ensure there is sufficient clearance between low lying vehicle components and lifting platform.

Hoist and Floor Jack Lifting Points

Front

Scheme 103

At side member vertical reinforcement in area of marking for onboard vehicle jack.

Rear

Scheme 104

At side member vertical reinforcement in area of marking for onboard vehicle jack.

TOW STARTING/TOWING

Attach tow rope or bar only at following eyes

Front Towing Eyes

Remove cover from right bumper.

Scheme 105

Remove towing eye from vehicle tool kit compartment.

Screw in towing eye until stop and tighten eye with wheel bolt wrench.

Rear Towing Eyes

Remove cover from right bumper.

Scheme 106

Remove towing eye from vehicle tool kit compartment.

Screw in towing eye until stop and tighten eye with wheel bolt wrench.

Remove towing eye after use and return to vehicle tool kit storage compartment. Towing eye must always be in vehicle.

Note. The tow-rope should be able to stretch to reduce the risk of damage to both vehicles. Therefore only ropes of synthetic material or rope from similarly flexible material should be used. However it is safer to use a tow bar! Avoid excessive towing effort and do not jerk. During towing operations on unsurfaced roads there is always a danger that the attachment points will be overstressed and damaged. Vehicle towing should only be done if it is not possible to start the engine with the starting assist cable.

If the vehicle must ever tow or be towed, observe the following

1. Legal regulations concerning towing must be observed.
2. Both drivers must be familiar with towing procedures. Inexperienced drivers should not attempt to tow start or tow.
3. When using a tow rope the driver of the towing vehicle must engage the clutch very gently when moving off and changing gear.
4. The driver of the vehicle being towed must ensure that the tow rope is always taut.
5. Both vehicles must have the emergency flasher switched on - if necessary observe any other regulations.
6. The ignition must be switched on, so that the steering wheel is not locked and the turn signals, horn, windshield wipers, and windshield washer system can be operated.
7. Since the brake booster only works with the engine running, the brake pedal must be stepped on with substantially more force when the engine is switched off.
8. With the engine switched off, the power steering also does not work, increasing the amount of steering effort.
9. Without lubricants in the manual transmission and/or automatic transmissions the car may only be towed with raised drive wheels.

When towing vehicles with manual transmission, observe the following

Before tow starting, push in clutch pedal and hold, and select gear 2 or 3.

Switch ignition on.

When both vehicles are in motion, release the clutch pedal.

As soon as the engine is started, push in the clutch and take the car out of gear to avoid running into the towing vehicle.

Note. Vehicles with catalytic converter must not be started when the catalytic converter is at operating temperature and pulling the vehicle over a longer distance of more than 50 m. Otherwise, the vehicle could be damaged by unburned fuel entering the catalytic converter. Tow starting of vehicles with automatic transmission is not possible for technical reasons.

When towing vehicles with FWD and automatic transmission, observe the following

1. Selector lever must be in the "N" position.
2. Do not tow at speeds greater than 30 mph (50 km/h).
3. The maximum towing distance is 30 miles (50 km).

For longer distances, the front end of the vehicle must be raised.

Reason: With engine switched off, the transmission oil pump does not work. Therefore the transmission is not sufficiently lubricated at higher speeds and longer distances.

When towing with a tow truck, the vehicle may only be towed with raised front wheels.

Reason: With car raised in the back, the driveshafts turn backwards. This would cause the planetary gears in the automatic transmission to achieve such high RPM that the transmission would be heavily damaged within a very short time.

When towing vehicles with AWD and manual transmission, also observe the following

1. Do not tow at speeds greater than 30 mph (50 km/h).
2. The maximum towing distance is 30 miles (50 km).

The vehicle can be towed with a tow truck with the front or rear axle raised.

Note. If normal towing of the vehicle is not possible, the vehicle must be transported with a special transporter or trailer. This also applies to towing distances of over 30 miles (50 km).

When towing vehicles with AWD and automatic transmission, also observe the following

1. Selector lever must be in the "N" position.
2. Do not tow at speeds greater than 30 mph (50 km/h).
3. The maximum towing distance is 30 miles (50 km).

The vehicle must not be towed by a tow truck with front or rear axle raised.

Note. If normal towing of the vehicle is not possible, the vehicle must be transported with a special transporter or trailer. This also applies to towing distances of over 30 miles (50 km).

VEHICLE CHECKS DURING INSPECTION AND MAINTENANCE

For vehicle checks, we recommend interactive acceptance VAS 5000 and performance test stand V.A.G 1858.

Brakes Inspection

Information for checking brakes on FWD and AWD vehicles is in the corresponding brake system repair information.

Performance Check

Perform performance check on performance test stand recommended by Audi. The corresponding correction factors for automatic transmissions and AWD are provided in these test stands. Vehicles with AWD may only be tested on a four-wheel performance test stand.

Tachometer Check

With the tachometer test, the vehicle wheels are driven. Vehicles with AWD may only be tested on a four-wheel test stand.

Shock Absorber Check

Information on testing shock absorbers can be found in the suspension repair information.

MEASURED VALUES BLOCK 32, READING

Note. Applies to certain countries only.

Perform the following steps.

Scheme 107

1. Connect VAS 5051/5052
2. On Board Diagnostic
3. Engine electronics
4. Measured value blocks
5. Select measured values block 32
6. Display field 2 (4-cylinder engines)
7. Display field 2 and 4 (V6 and V8 engines)

Note. If the values deviate by > 15 %, then the Fuel Injector Cleaner G17, refer to FUEL INJECTOR CLEANER G17 must be increased by a factor of 4.

BATTERY, CHECKING LEVEL USING GUIDED FAULT FINDING

Follow these steps in sequential order.

1. Connect VAS 5051/5052
2. Guided Functions
3. Select brand and model
4. Service Work
5. Battery, Testing
6. Follow the instructions.
7. Send the diagnostic protocol online.

Note. If tester display shows charge or replace battery. Refer to Removal and Installation

BATTERY FLUID LEVEL, CHECKING

Note. Batteries with or without visual indicator must not be opened.

The battery is in the luggage compartment.

Scheme 108

Turn off the ignition and remove the key.

Remove the nut -1- and remove the cover -2- over the vehicle tools.

Remove the molded insert under battery.

Battery without Visual Indicator

1. On batteries with visible min and max markings, electrolyte level only needs to be checked visually.
2. The electrolyte level must be above the MIN marking.
3. Use a flashlight to improve visibility when performing an exterior visual inspection of the min and max markings.

Battery with Visual Indicator

1. As the "visual indicator" is only located in a battery cell, only the battery electrolyte level for this battery cell can be checked.
2. The "visual indicator" -arrow- provides information about the fluid levels and the state of charge for the battery being checked.
3. Bubbles can build up under the "visual indicator" when the battery is charging and also while driving, causing the color displayed to be incorrect.

Loosen the bubbles under the "visual indicator" by lightly and carefully hitting the "visual indicator" -arrow- with the handle of a screwdriver.

Scheme 109

Read the battery electrolyte level present in the color display. Two different displays are possible

AGM BATTERY, CHECKING

Note. AGM batteries are marked with "AGM". The AGM battery is closed, needs no maintenance, and must not be opened.

Perform a visual inspection of the battery

1. Corrosion on the battery pole
2. Battery terminal and battery secure
3. Damage to the battery terminals and housing

BATTERY, CHECKING CABLES FOR SECURE SEATING

Check the battery terminals for secure seating and tighten nuts -1- and -2- if necessary.

Scheme 110

Remove the vehicle tools bracket, if present, remove the Subwoofer. Refer to Removal and Installation .

Scheme 111

Check battery for secure fit, tighten screws -6- on securing bracket -7- if necessary.

TIRES, CHECKING

Note. For safety reasons, all tires on the vehicle should be of the same make and tread design. On AWD vehicles, always use tires of the same make and tread design. If not, the center differential can get damaged.

DELIVERY INSPECTION

Check running surfaces and side walls for damage, remove foreign bodies, if necessary.

INSPECTION SERVICE

Check running surfaces and side walls for damage, remove foreign objects, if necessary.

Check tire treads for cupping, feathering, one-sided tread wear, porous side walls, cracks, cuts, and rim damage.

TIRES, CHECKING WEAR PATTERN

The wear pattern of the front wheels can be used to assess whether a check of the track and camber is necessary

1. Feathered edges of the treads may indicate faulty toe adjustment.
2. One-sided tread wear is mostly caused by faulty camber.

Note. If such wear patterns are found, determine the causes by checking the wheel alignment (repair measure).

TREAD DEPTH, CHECKING

1. Minimum tread depth: 1.6 mm

Note. This value may vary for individual countries due to different legislative regulations. If the tread wear is close to the wear limits, inform customer and note findings on the repair order.

TIRE PRESSURE, CORRECTING

The tire pressures are on the label on the inside of the driver door.

Scheme 112

Note. The tire pressures listed on the label are cold tire pressures. Do not reduce tire pressure when the tires are warm.

TIRE REPAIR KIT, CHECKING EXPIRATION DATE

1. On vehicles with a tire repair kit, check the expiration date.
2. The bottle with the tire sealant is in the spare wheel well under the battery cover.

Remove the nut -1- and remove the cover -2- over the vehicle tools.

Remove the molded insert under battery.

Scheme 113

Remove the bottle and check the expiration date -arrow-.

Note. Replace a bottle that has already been used. If expiration date has passed, replace bottle.

SPARE TIRE

1. Spare wheel with standard tire

Maintain the highest specified tire pressure for the tire size according to the tire pressure label.

1. Mini spare tire

The tire pressure is on the sidewall.

1. Break-down kit

Tire Repair Kit: Check expiration date

Note. Tire valves must be sealed with valve caps. Otherwise, dirt can enter valve needle which becomes jammed and can no seal shut.

BRAKE SYSTEM, INSPECTING FOR LEAKS AND DAMAGE

Check the following components for leaks and damage

1. Brake Master Cylinder
2. Brake Booster
3. ABS Hydraulic unit
4. Calipers

Make sure the brake hoses are not twisted.

Make sure the brake hoses do not come in contact with any vehicle components when steering is at full lock.

Check brake hoses for porosity, bubbles and cracks.

Check brake hoses for chafing.

Check the brake line connections for leaks or corrosion and make sure they are attached securely.

BRAKE PADS, CHECKING THICKNESS

Special tools and workshop equipment required

Scheme 114

1. Test pin T40139

To determine brake pad thickness, the sliding ring must be slid as far as stop in the direction of the measure point, then bring measuring point of test pin through rim and into contact with brake pad and slide test pin evenly in direction of brake pad until the test pin touches the brake pad backing plate.

Then remove test pin and read out value on scale marked with brake symbol

Note. Make sure the sliding ring does not move, otherwise the measurement will be incorrect. The second scale on the test pin (tire symbol) can be used to determine the tire tread depth.

Scheme 115

a - Pad thickness including backing plate and damping plate

Wear limit: 7

Scheme 116

a - Pad thickness including backing plate and damping plate

Wear limit: 7

Note. On some vehicles, due to the shape of the rims (accessory rims), it may not be possible to bring the test pin through the rim and into contact with the brake disc or pad. If this is the case, use the following procedure: Determine thickness of outer pads by checking visually (using a flashlight through a hole in wheel). Determine thickness of the inner pad by visual check (using a flashlight through a hole in the wheel).

GENERAL INFORMATION

Note. Use only new Original VW / Audi brake fluid.

Please observe the following

Scheme 117

1. Fluid level must be at MAX mark

Note. To prevent the brake fluid from overflowing from the reservoir, the level must not be over the MAX mark.

When driving, fluid level drops slightly from use and automatic brake pad adjustment.

Always check fluid level in conjunction with brake pad wear

1. When brake pads are new or if there is still enough brake lining left, the brake fluid level must be between MIN and MAX marks.
2. With brake fluid at MIN mark or slightly above, topping off brake fluid is not necessary when wear limit of brake pads has been almost reached.

Note. Use only new Original VW / Audi brake fluid.

Change brake fluid with brake charger/bleeder unit VAS 5234

BRAKE FLUID, CHANGING

Special tools and workshop equipment required

Scheme 118

Scheme 119

1. Brake filling and bleeding tool VAS 5234
2. Reservoir

Note. The brake fluid level in the reservoir must be high enough so that air cannot get into the brake system. Do not remove the strainer inside the brake fluid reservoir. Follow Brake Charger/Bleeder Unit VAS 5234 operating instructions!

Remove brake fluid reservoir cap -1-.

Scheme 120

Use the hose from the Brake Charger/Bleeder Unit VAS 5234 to extract as much brake fluid as possible.

Scheme 121

Install adapter -1- to brake fluid reservoir.

Scheme 122

Connect filler hose -2- on Brake Charger/Bleeder Unit VAS 5234 to adapter.

Manual Transmission

Pull cover cap off clutch slave cylinder bleed screw.

Place extractor bleeder hose -1- on clutch slave cylinder bleeder screw, open bleeder screw, and let about 100 ml drain out. Close bleeder screw and install cover cap.

Operate clutch pedal several times.

All Vehicles

Remove caps from the bleeder screws.

Connect extractor bleeder hose -1- to front left bleeder screw, open bleeder screw and allow about 200 ml to flow out. Close bleeder screw.

Repeat work sequence on other side of vehicle at front.

Connect extractor bleeder hose -1- to rear left bleeder screw, open bleeder screw and allow about 200 ml to flow out. Close bleeder screw.

Repeat procedure on opposite rear.

Install cover caps on brake caliper bleeder screws.

Move filler lever on Brake Charger/Bleeder Unit VAS 5234 to position -B- (see operating instructions).

Remove the filler hose from the adapter.

Remove the adapter from the brake fluid reservoir.

Install the brake fluid reservoir cap.

Check brake fluid level and fill if necessary.

Check pedal pressure and brake pedal free play. Free play: max 1 / 3 of pedal travel

SEQUENCE AND BRAKE FLUID CAPACITY TABLE

Install cover caps on brake caliper bleeder screws.

Move filler lever on VAS 5234 or V.A.G 1869 to position -B- (see operating instructions).

Remove the filler hose from the adapter.

Remove the adapter from the brake fluid reservoir.

Check brake fluid level and fill if necessary.

Install the brake fluid reservoir cap.

Check pedal pressure and brake pedal free play. Free play: max 1 / 3 of pedal travel

DTC MEMORY, CHECKING

Special tools and workshop equipment required

1. Vehicle Diagnosis, Testing and Information System VAS 5051/ 5052

Follow these steps in sequential order.

1. Connect VAS 5051/5052
2. Vehicle Self-Diagnosis (OBD)
3. Gateway device list
4. Read the control module with the fault stored in the DTC memory.
5. Correct relevant malfunctions with customer's approval.

KEY, CHECKING FUNCTIONALITY

Separate keys so that the function of each key can be checked individually.

Insert each key into the ignition and start the engine.

If engine switches off by itself after about 3 seconds and "save" appears in the odometer display, the key has not been programmed to the immobilizer.

Repair measure: Guided Fault Finding (Programming vehicle keys).

Note in the delivery check list the number of keys checked and given to the owner.

Pull on the ignition key while the engine is running.

If the key can be removed from the ignition lock even though the engine is running, then the ignition lock is rusted.

Repair procedure: Technical product information.

FUEL INJECTOR CLEANER G17

Note. Applies to certain countries only.

1. Add Fuel Injector Cleaner G17 into the fuel tank in a ratio of 10 ml of additive for every 10 liters of fuel.
2. The following table shows the required quantities for each fuel level shown in the fuel gauge.

Mixture Ratio

Note. The values in the table are based on an 64 liter fuel tank. If there are other fuel capacities in the fuel tank which are not mentioned in the table, then add 10 ml of additive for every 10 liters of fuel. If values 2 and 4 in measured values block 32 deviate, refer to MEASURED VALUES BLOCK 32, READING then increase the amount of Fuel Injector Cleaner G17 by factor 4. Example: fuel gauge 1/4 fuel additive G17 64 ml

ENGINE COMPARTMENT FRONT NOISE INSULATION COVER), REMOVING AND INSTALLING

Remove the front noise insulation mounting pieces -1 through 3-.

Scheme 123

Remove the rear noise insulation mounting pieces -1 through 3-.

Scheme 124

Note. The mounting bolts for the front Aero underbody must be loosened to remove the front noise insulation.

POWER STEERING SYSTEM, CHECKING FOR LEAKS, FLUID LEVEL AND FILLING

With engine not running, move front wheels in straight-ahead position.

Cold Fluid (approximately 68°F (20°C))

Remove cover.

Clean dipstick with clean cloth.

Screw cap on hand-tight and remove again.

Note. Screw cap fully in to get an accurate fluid level reading.

Check the fluid level: The fluid level must be within the -A- range.

Scheme 125

Warm Fluid (approximately 176° F (80 °C))

Remove cover.

Clean dipstick with clean cloth.

Screw cap on hand-tight and remove again.

Note. Screw cap fully in to get an accurate fluid level reading.

Check the fluid level: The fluid level must be within the -B- range.

Note. If fluid level is above specified range, fluid must be extracted off.

If no leaks are detected, top off with power steering fluid "G 002 000".

INSTRUMENT CLUSTER/MMI, SELECT A LANGUAGE

1. Press the CAR MMI button in the center console.
2. Then press the Setup button.
3. Then press the Settings button at the top right next to the MMI knob.
4. Turn the MMI knob to select the correct language and then press the knob to confirm.

FUEL FILTER, REMOVING AND INSTALLING

Special tools and workshop equipment required

1. Reservoir

Removing

Scheme 126

Proceed as follows

Follow the rules for clean working conditions.

Remove the right underbody trim. Refer to Removal and Installation .

Remove the nuts -1- and -2-.

Tilt the bracket -3- down -arrow-, disengage it from the body and remove it.

Place a container under the fuel filter.

Scheme 127

Remove the supply hoses -1- and -4-.

Disengage the fuel return line -3- at the buffer -2-.

Remove the fuel filter -5- with the buffer.

Installing

Installation is reverse of removal, but note the following

1. Arrows on the filter housing indicate the direction of fuel flow.

Note. Bleeding the fuel system, refer to General Information . Cleanliness rules: Even minor contamination can lead to malfunctions. Always follow the rules below regarding cleanliness when working on the fuel supply and injection system. Always clean connections and the area around them before loosening them. Seal open lines and connections immediately with clean plugs or caps. Place parts that have been removed on a clean surface and cover them. Only use lint-free cloths. Cover or seal open components carefully if the repair will not be performed immediately. Only install clean parts: remove any replacement parts from their packaging just before installing them. Do not use any parts that were stored outside of their original packaging (such as in a tool box, etc.). If the system is open: do not work with compressed air. Do not move the vehicle.

COOLING SYSTEM, CHECKING

Note. The additional coolant portion of the mixture must amount to at least 40% (freeze protection to -13°F [-25°C]) and should not exceed 60% (freeze protection to -40°F [-40°C]). Otherwise the freeze protection will be reduced and the cooling efficiency will be worsened. The freeze protection must be ensured to approximately -13°F (-25 °C). Permissible freeze protection.

Special tools and workshop equipment required

Scheme 128

1. Refractometer T10007

Note. Read the bright/ark boundary to obtain an accurate reading for the following tests. Place a drop of water on the glass to improve the readability of the bright/dark boundary. The bright/dark boundary can be clearly recognized on the "WATERLINE".

Check the concentration of the coolant additive using refractometerT10007 (operating instructions).

The scale -1- of the refractometer is designed for coolant additives G 12, G12 Plus, G12 Plus Plus and G11.

Scheme 129

Scale -2- refers only to coolant additive G 13. (begins L80)

Note. The freeze protection must be ensured to approximately -13°F [-25°C]. If climate conditions make greater freeze protection necessary, the amount of can be increased up to 60% (Freeze protection to approximately -40 °F/C). Adding more coolant reduces the freeze protection and reduces the cooling efficiency.

Coolant Level, Checking and Filling

Check the coolant level in the coolant reservoir when the engine is cold.

Scheme 130

1. Delivery inspection: coolant level above "MIN marking" -arrow-.
2. Inspection service: coolant level above "MIN. marking" -arrow-.

If coolant level is too low, fill with coolant mixture.

Note. Determine cause of fluid loss, which cannot be attributed to normal use and repair.

Mixture Ratio

Note. Coolant additive prevents freeze and corrosion damage, scaling, and raises the boiling point. For these reasons the cooling system must have coolant additive the whole year. Especially in countries with tropical climates or when vehicle is driven under heavy load, the coolant improves the engine reliability by its increased boiling point. The coolant concentration must not be reduced by adding water, even during the warmer season. The coolant additive ratio must be at least 40%.

Note. If the air filter insert is heavily soiled or soaked, dirt particles or moisture can reach the mass airflow sensor -G70- and cause an incorrect airflow reading. This causes lack of performance because a lower injection amount is calculated. Always use an original air filter insert. Use a lubricant (silicone-free) when installing intake hose. Secure all hose connections with hose clamps that match current standard production. Check drain hose in bottom side of air filter or dirt and adhesion (clean, if necessary). Clean air filter housing (upper and lower parts) of salt residue, dirt or leaves (clean with vacuum, if necessary). Check mass airflow sensor and intake hose (clean air side) for salt residue, dirt and leaves. Check the intake canal up to the filter insert for dirt. When installing air filter insert, ensure it is centered in mount on bottom of air filter. Carefully and gently place upper part of air filter on lower part. When doing so, ensure upper part of air filter is not crooked on air filter insert. Pay attention to the seal lip on the air filter insert (air leak). Finally, screw upper part of air filter onto lower part.

6-CYLINDER ENGINES

Open hose clamps -3- with using hose clamp pliers V.A.G 1921 and remove the intake hose.

Release the connector -2- from the mass airflow sensor and remove.

Remove fastening bolts -arrows-.

Scheme 131

Lift and remove the air filter housing upper section.

Remove both screws and then remove the air filter -arrows-.

Scheme 132

Clean the air filter housing, install the new air filter and tighten the screws -arrows-.

Scheme 133

Install the upper section of the air filter housing with the filter and tighten the bolts -arrows-.

Connect the connector -2- for the mass airflow sensor and secure.

Attach the air intake tube to the filter housing and secure with a hose clamp -3-.

Note. There is no mass airflow sensor on the air filter in vehicles with the 3.2L FSI engine. Do not open both clamps -arrows-.

4-CYLINDER ENGINES

Removing

Disconnect electrical connector -1- from mass airflow sensor -G70-.

Scheme 134

Open the hose clamp -2- from the air guide hose leading to the turbocharger and remove it from the mass airflow sensor -G70-.

Remove the screws -arrows- and remove the air filter housing upper section.

Remove the old filter insert.

Installing

Follow the information and procedures below to ensure the mass airflow sensor -G70- functions correctly.

Clear the drain hole -arrow- in the air filter housing lower section with compressed air.

Scheme 135

Clean air filter housing (upper and lower parts) of salt residue, dirt or leaves (clean with vacuum, if necessary).

Check mass airflow sensor and air guide hose (clean air side) for salt residue, dirt and leaves.

Check air duct that goes from the lock carrier to the air filter housing for dirt and leaves.

If equipped, re-connect the vacuum hose to the intake air switch-over valve -N335-.

When installing air filter insert, ensure it is centered in mount on bottom of air filter.

Carefully and gently place upper part of air filter on lower part. Make sure the upper part of air filter is not sitting crooked on air filter insert (note air filter insert sealing lip).

Make sure the secure fit from air guide hose to mass airflow sensor -G70-.

Installation is the reverse of removal.

AIR FILTER HOUSING LOWER SECTION, REMOVING

Removing

Open the expanding clamps -arrows- to remove the air guide hose from the air filter housing.

Scheme 136

Remove the bolts -arrows- from the air filter housing upper section and then remove the air filter housing upper section.

Scheme 137

Remove the vacuum hose -1- from the intake air switch-over valve -N335- -2-.

Scheme 138

Release the mount from the air filter housing lower section (Press down the rubber on the right and left and then pull it upward).

Note. Do not use any lubricant when installing the mount.

Remove the air guide hose -1- for the secondary air pump.

Scheme 139

Note. The connector on the intake air switch-over valve -N335- is not installed in all vehicles.

Carefully remove the air filter housing lower section.

Installing

Note. Always use an original air filter insert. Use a lubricant (silicone-free) when installing intake hose. Secure all hose connections with hose clamps that match current standard production.

In the event that a warm air intake (only in cold country versions) is installed, make sure to use the correct retainer -arrows- for the air intake connection (observe the markings).

Scheme 140

Check the drain hose -arrow- in the bottom side of the air filter for dirt and adhesion (clean, if necessary).

Clean air filter housing (upper and lower parts) of salt residue, dirt or leaves (clean with vacuum, if necessary).

Check the intake canal up to the filter insert for dirt.

Reconnect the connector to the intake air switch-over valve -N335-.

Reconnect the air guide hose -1- (if equipped).

Re-install the air filter housing lower section.

Note. The water drain hose must be routed straight down and must not be kinked.

Reconnect the vacuum hose -1- to the connection for the intake air switch-over valve -N335-.

The retaining strap for the air filter unit -1- must line up with the retaining strap for the air filter housing -2-.

Carefully and gently place upper part of air filter on lower part.

Note. Check again that the air filter upper section is in the groove for the air filter lower section before tightening (air leaks).

Finally, screw upper part of air filter onto lower part.

Make sure that the air guide hose is secured in the correct position.

Further installation is the reverse of removal.

HOOD SAFETY CATCH, LUBRICATING

Perform the following steps in the given sequence

Note. Vehicle must be at least at room temperature. Operate the moveable components several times to allow the universal oil to seep in. Remove any excess lubricant with a lint-free cloth.

Coat the hood safety catches with universal oil-Spray G 000 115 A2 at the marked positions -arrows-.

Scheme 141

ENGINE COVER, REMOVING

4-Cylinder Engine

Removing

Carefully remove the engine cover from the bolts. Do not jerk the engine cover or pull it off from one side.

Scheme 142

Installing

To avoid damage, do not hit engine cover with fist or a tool.

Position the engine cover (while paying attention to the oil filler neck) on the engine.

Using both hands, press the engine cover into the rubber grommets.

6-Cylinder Engine

Removing

Carefully remove the engine cover from the bolts. Do not jerk the engine cover or pull it off from one side.

Scheme 143

Installing

To avoid damage, do not hit engine cover with fist or a tool.

Position the engine cover on the engine.

First press the back of the engine cover into the rubber grommets by hand and then use both hands to press the front into the rubber grommets.

6-cylinder 3.0L TFSI gasoline

Scheme 144

Removing

Remove the engine covers -1- and -2-.

Installing

When installing, place engine covers on four mounting points and press them down at the same time with the hand held flat.

ENGINE AND ENGINE COMPARTMENT, CHECKING

Perform visual check as follows

Check engine and transmission for leaks and damage.

Check the final drive, CV boots and steering for leaks and damage.

Note. Perform oil change at operating temperature.

Special tools and workshop equipment required

Scheme 145

Scheme 146

1. Oil extractor V.A.G 1782
2. Hazet tension band 2171-1
3. Oil filter wrench 3417

Note. Follow all waste disposal regulations! Check for cleanliness.

2.0 TFSI

Remove engine cover. Refer to ENGINE COVER, REMOVING

Loosen oil filter with Hazet Tension Band 2171-1 or Oil Filter Wrench 3417 and remove.

Scheme 147

Clean oil filter sealing surface on engine.

Lubricate rubber seal lightly with oil.

Install new filter and tighten.

Extract the engine oil.

Fill motor oil.

Oil specification, refer to Maintenance, Diagnosis

3.0L TFSI AND 3.2L FSI GASOLINE

Remove engine cover. Refer to ENGINE COVER, REMOVING

Scheme 148

Remove the oil filter cover using a socket wrench SW 36 -arrow-.

Clean sealing surfaces oil filter cover and at oil filter housing.

Replace oil filter insert.

Scheme 149

Remove sealing ring at pull tab -arrow A- from cap -1-.

Insert new sealing ring -2- with semicircular profile in groove -arrow B- on cap.

1. The pull tab -arrow A- must face upward.
2. Smooth side of sealing ring -2- must face toward outside

Scheme 150

Insert O-ring -2- in groove -arrow- on oil filter housing -1-.

Note. Follow all waste disposal regulations! Check for cleanliness.

Engage new oil filter insert in oil filter cover.

Install oil filter cover.

Extract the engine oil.

Fill the engine oil.

Oil specification, refer to Maintenance, Diagnosis

Note. Please follow specified engine oil capacity and oil standards. Refer to Maintenance, Diagnosis .

Engines with Turbocharger

After the engine oil and oil filter have been replaced, observe the following when first starting the engine

1. As long as the oil pressure indicator lamp in the instrument cluster is on, the engine may only run in idle. Do not touch the accelerator pedal! Bumping the accelerator pedal can damage the turbocharger or destroy it completely.
2. The full oil pressure achieved and the engine can be accelerated only when the warning light extinguishes.

All

Check the oil level.

OIL LEVEL, CHECKING WITH OIL LEVEL DISPLAY

Note. Minimum engine oil temperature 140°F (60°C). Vehicle must be in level position. After stopping engine, wait a few minutes to allow oil to flow back into oil pan. The oil level can be checked via the radio or the MMI.

Select: Function button CAR , menu > oil level.

Read the oil level, fill the oil until the bars in the oil level display are just before MAX.

Scheme 151

OIL LEVEL, CHECKING WITH OIL LEVEL DISPLAY TESTER

Note. Minimum engine oil temperature 140°F (60°C). Vehicle must be in level position. After stopping engine, wait a few minutes to allow oil to flow back into oil pan.

Special tools and workshop equipment required

1. Oil Level Display Tester T40178

Scheme 152

Marking field on the oil level display tester

Scheme 153

Adjust the value on the oil level display test on the upper scale -arrow- by opening the knurled screw and moving the adjusting ring.

Insert the oil level display tester all the way (adjusting ring) into the tube for the oil dipstick, then pull it out and read the oil level.

Scheme 154

Read the value on the scale.

Note. Once the hood is opened, the Dynamic measurement is erased and the MMI or DIS will always show the oil level at maximum until a new Dynamic measurement is available ~60 miles (100 km)

NAVIGATION EJECT BUTTON, UNLOCKING

Follow these steps in sequential order.

1. Connect VAS 5051/5052
2. Guided Functions
3. Go to - function/component selection
4. Service Work
5. Navigation, Eject button, locking/unlocking
6. Now follow guided program

ROAD TEST

The following checks depend on the vehicle equipment level and the available testing possibilities (city or rural).

During the road test, check the following

1. Engine: performance, stalling, idle, acceleration
2. Clutch: starting, pedal force, smell
3. Shifting: ease of movement, shift lever position
4. Automatic transmission: selector lever position, shift lock/ignition key interlock, shift behavior, instrument cluster display
5. Foot and parking brake: function, free travel and effectiveness, pulling to one side, rubbing, squeaking
6. ABS function: when braking with activated ABS, the brake pedal must pulse noticeably.
7. Steering: function, steering travel, steering wheel center position when driving straight ahead.
8. Tilt/slide sunroof: function
9. Cruise control system: function
10. Radio: reception, interference
11. Driver information system (DIS): functions
12. A/C system: function
13. Vehicle: pulling to one side while driving straight ahead (level road)
14. Imbalance: wheels, driveshafts
15. Wheel bearing: noises
16. Engine: warm starting behavior
17. Check the horn

WHEEL BOLTS

The adapter to loosen/tighten the anti-theft wheel bolts is located with the vehicle tool kit.

Note. Be sure to tighten wheel bolts in diagonal sequence to the following specified torque

Place the adapter and extractor back in the vehicle tool kit.

CORRECT WHEEL INSTALLATION

When installing wheels, you must observe the following points to ensure wheels fit securely

1. Always tighten wheel bolts to the specified torque so the wheel bolt seats in rim are not deformed.
2. When installing a wheel, do not tighten first wheel bolt immediately (for example, with an impact wrench). This would prevent other bolts from centering rim properly when they are screwed in. Rim could then become loose, even if tightened to specified torque.
3. Before installing wheels, check for rust/corrosion in wheel bolt seats and contact surfaces between rims and hubs, removing if necessary. Otherwise, the wheel bolts can lose tension after installation and the rim can come loose.

WINDSHIELD WASHER SYSTEM, CHECKING AND ADJUSTING SPRAY NOZZLES

Special tools and workshop equipment required

Scheme 155

1. Windshield Washer Aiming Tool T40187 equipped with Tip 3125/5A

Unlock the long cover -1- on the wiper spray nozzle adjusting tool T40187 -arrow A- and push it toward the rear -arrow B-.

Scheme 156

Install the adjusting pin -2- on the spray nozzle -arrow- in the nozzle unit -1- and aim it at the windshield. Adjust it if necessary.

Scheme 157

If the spray field does not match the specifications, clean uncleaned washer jets.

Windshield Adjustment Dimensions

Scheme 158

Note. The adjustment dimensions give values for a driving vehicle, that is, when parked, the spray pattern will shift slightly.

Mark the 6 points on the windshield with a water-soluble pen

Locate the points of the individual spray jets with the Windshield Washer Aiming Tool T10127.

Rear Window Adjustment Dimensions

Scheme 159

Adjust spray jets with Washer Jet Adjuster T10127 so fluid sprays onto the rear window at the places shown.

1. Dimension -a- = 150 mm.
2. Dimension -b- = 10 mm.
3. Dimension -c- = 300 mm.

If the spray field does not match the specifications, clean uncleaned washer jets.

Cleaning Washer Nozzles

Remove the spray nozzle. Refer to WINDSHIELD WASHER SPRAY NOZZLES, REMOVING AND INSTALLING .

Flush washer jet in the opposite direction of the spray flow with clean water.

To remove the rest of the contaminants, the washer jet may only be cleared with compressed air blowing opposite the direction of the spray.

If the spray field still does not correspond to the specifications, replace the washer jet.

WINDSHIELD WASHER SPRAY NOZZLES, REMOVING AND INSTALLING

Removing

Scheme 160

Unclip the windshield washer spray nozzles -1- from the engine hood -arrow-.

Remove the clip -3- in direction of -arrow- and disconnect the washer fluid line -2- from the spray nozzle.

Scheme 161

Remove the connector -1-, if applicable.

Installing

Installation is reverse of removal, but note the following

Make the clip audibly engages into the washer fluid line when attaching the windshield washer fluid line.

Install the spray nozzle into the hood.

HEADLAMP WASHER SYSTEM, CHECKING SPRAY NOZZLES

Headlamp cleaner spray nozzles are set at the factory and do not need to be adjusted.

WINDSHIELD WIPER BLADES, CHECKING END POSITION AND FOR DAMAGE

Windshield Wiper Blade Park Position

Note. Every second time it is switched off, the wiper motor runs to an over-stroke parked position, that ensures that the lip of the wiper blade is flipped to the other direction. For this to happen, the wiper motor runs downward to the end position and then back up again very slightly. This over-stroke parked position must not be used for aligning/checking the wiper crank. The position where the wiper motor runs directly to end position must be used. Activate mist wipe again, if necessary.

Switch windshield wipers on and off and allow to run to end position.

Turn the ignition off.

Check if the windshield wiper blade tips are positioned with the following distances to the plenum chamber cowl panel grille at the bottom of the windshield

Scheme 162

1. Dimension -a- = 0 + 10 mm.
2. Dimension -b- = 7 + 10 mm.

Adjust the wiper arm if necessary. Refer to Description and Operation

Note. The dimensions give the distance of the wiper blade point to the black cowl panel on lower edge of windshield. Placement is similar for RHD vehicles.

SUNROOF, CLEANING AND LUBRICATING

Special tools and workshop equipment required

1. Lint-free cloths
2. Brush
3. Shop vacuum i.e. Wet and dry vacuum cleaner
4. Lubricant G 060 751 A2 for the guide rails.
5. Krytox paste G 052 141 A2 for seals.
6. Isopropyl alcohol for cleaning the seals.

Note. Paint brush (approximately 15 mm wide) (bend approximately 40°).

Clean and Lubricate Wind Deflector Seal

Move the glass sunroof panel back until the wind deflector is completely in position.

Note. It is not necessary to remove the wind deflector.

Remove grease and remaining dirt from the wind deflector seal -arrow- with isopropyl alcohol and a lint-free cloth.

Scheme 163

Apply a thin layer of Krytox paste G 052 141 A2 from underneath onto the rubber lip of the wind deflector -arrow- using a commercially available paint brush.

1. After applying, make sure that there is no visible white grease film remaining.

Wipe away any extra Krytox paste from the rubber lip with a lint-free cloth.

Clean and Lubricate Glass Cover Seal

Install the glass sunroof panel.

Note. For opened glass sunroof panel, first coat the front and then install the rear.

Remove grease and remaining dirt from the glass sunroof panel -arrow- with isopropyl alcohol and a lint-free cloth.

Scheme 164

Apply a thin layer of Krytox paste as far as possible on the glass sunroof panel -arrow- with a commercially available paint brush.

1. After applying, make sure that there is no visible white grease film remaining.

Wipe away any excess Krytox paste from the seal with a lint-free cloth.

Clean and Lubricate Guide Rail

Open the glass sunroof panel entirely.

Remove the grease and remaining dirt on the guide rail with a lint-free cloth. (If necessary, remove sand and fine pollen from the guide rails with a shop vacuum).

Apply G 060 751 A2 grease on the inside of the guide rail -arrow- with a commercially available paint brush.

Scheme 165

Apply G 060 751 A2 grease on the outside of the guide rail -arrow- with a commercially available paint brush.

Scheme 166

Apply G 060 751 A2 grease on the side of the guide rails for the sliding headliner -arrow- with a commercially available paint brush.

Scheme 167

Remove the excess lubricant from the guide rails with a lint-free cloth.

Repeat the process for the opening on the opposite side of the vehicle.

PANORAMA SUNROOF, CHECKING, CLEANING, AND LUBRICATING

Special tools and workshop equipment required

1. Lint-free cloths
2. Brush
3. Measuring container
4. Shop vacuum i.e. Wet and dry vacuum cleaner
5. Lubricant G 060 751 A2 for the guide rails, sunroof motor, slotted guide rail guide, and sliding cams.
6. Krytox paste G 052 141 A2 for seals.
7. Isopropyl alcohol for cleaning the seals.

Note. Paint brush (approximately 15 mm wide) (bend approximately 40°).

Clean Glass Panel Seal

Open the glass panel all the way.

Remove grease and remaining dirt from the glass panel seal -arrows- with isopropyl alcohol and a lint-free cloth.

Scheme 168

Clean and Lubricate Glass Panel Outer Seal

Open the glass panel all the way.

Remove grease and remaining dirt on the outside from the glass panel seal -arrows- with isopropyl alcohol and a lint-free cloth.

Scheme 169

Apply a thin layer of Krytox paste as far as possible on the outside of the glass panel seal -arrows- with a commercially available paint brush.

Scheme 170

1. After applying, make sure that there is no visible white grease film remaining.

Wipe away any excess Krytox paste from the seal with a lint-free cloth.

Clean and Lubricate Slotted Guide Rail Guide

Open the glass panel all the way.

Remove grease and remaining dirt from the slotted guide rail guide with a lint-free cloth. (If necessary, remove sand and fine pollen from the slotted guide rails with a shop vacuum).

Apply the lubricant G 060 751 A2 with a commercially available paint brush in the marked positions -arrow- on the slotted guide rail guide.

Scheme 171

Remove the excess lubricant from the slotted guide rail guide with a lint-free cloth.

Repeat the process for the opening on the opposite side of the vehicle.

Clean and Lubricate Guide Rail

Open the glass panel all the way.

Remove the grease and remaining dirt on the guide rail with a lint-free cloth. (If necessary, remove sand and fine pollen from the guide rails with a shop vacuum).

Apply G 060 751 A2 grease on the exterior underside of the guide rail -arrow- with a commercially available paint brush.

Scheme 172

Apply G 060 751 A2 grease on the exterior upper side of the guide rail -arrow- with a commercially available paint brush.

Scheme 173

Apply G 060 751 A2 lubricant on the inside of the guide rails -arrows- with a commercially available paint brush.

Scheme 174

Remove the excess lubricant from the guide rails with a lint-free cloth.

Repeat the process for the opening on the opposite side of the vehicle.

Clean and lubricate the sunroof motor locking pin

Position the glass panel.

Remove the grease and remaining dirt from the sunroof motor locking pin with a lint-free cloth. (If necessary, remove sand and fine pollen from the sunroof motor).

Apply the lubricant G 060 751 A2 to the sunroof motor locking pin on the underside -arrow- with a commercially available paint brush.

Scheme 175

Remove the excess lubricant from the sunroof motor with a lint-free cloth.

Repeat the process for the opening on the opposite side of the vehicle.

1. Open and close the glass cover several times so that the lubricant can be worked in.

Clean and Lubricate Sliding Cams

Move the glass cover back until the wind deflector is completely in position.

Remove any remaining lubricant and contaminates from the sliding lobes with a lint-free cloth.

Apply lubricant G 060 751 A2 to the underside of the sliding lobes -1- with a commercially available brush.

Scheme 176

Remove any excess lubricant from the sliding lobes with a lint-free cloth.

Repeat the process for the opening on the opposite side of the vehicle.

Check Water Drain for Contaminates

Open the glass panel all the way.

Drain the water from the guide rail near the glass cover -arrow- into a commercially available measuring container -1- out from the vehicle interior.

Scheme 177

1. Make certain that the water divides in both directions so that it can flow out again from the A-pillar and from in front of the rear axle.

Repeat the process for the opening on the opposite side of the vehicle.

Note. If no water flows out from the appropriate areas, clean the water drain. Refer to Description and Operation .

SNOW SCREEN, CLEANING

Remove the front end cover -1-.

To remove, remove the expanding clip locking pin -2- and release the expanding clip.

Remove the cover back off the radiator grille.

When installing, simply press the locking pin into the expanding clip.

Scheme 178

Remove air filter intake duct.

Remove snow screen -1- and clean with compressed air.

Scheme 179

Remove stubborn dirt with a blunt object.

Note. Replace snow screen if damaged.

SERVICE DISPLAY, RESETTING OR ADAPTING

Resetting

Follow these steps in sequential order.

1. Connect VAS 5051/5052
2. Guided Functions
3. Service Work
4. Now follow guided program

DUST AND POLLEN FILTER, REMOVING AND INSTALLING

Note. Dust and pollen filter change interval. Refer to Maintenance, Diagnosis . The dust and pollen filter is available in different versions (without and with a filter insert with activated charcoal). A dust and pollen filter with activated charcoal insert is currently installed in vehicles with the "Comfort" air conditioning system. A dust and pollen filter without activated charcoal insert is currently installed in vehicles with the "Basis" air conditioning system. Clean dust and pollen filter area in A/C duct before installing a new filter. On vehicles with driver training equipment, you must remove the driver training pedals if necessary (depending on version, there are service separation points on the training pedals for driver training equipment)

Removing

Move the passenger seat all the way back.

Remove the screw clips -A- and the insulation -B-.

Scheme 180

Cover the floor covering in the area under the dust and pollen filter with paper.

Loosen the retainers -B-, slide the cover -A- in the direction of the -arrow- and remove the cover.

Scheme 181

Note. If the retainers -A- can no longer hold the cover -B-, it can be secured with bolts -D- ad the mounting points -C-.

Remove the dust and pollen filter -A- from the A/C unit shaft -B-.

Scheme 182

Installing

Installation is done in reverse sequence while observing the following.

Clean the A/C unit via the shaft -B- (e.g. with a vacuum) after removing the dust and pollen filter -A-.

Insert the dust and pollen filter -A- facing the right way (the diagonal -C- on the side toward the fresh air blower -D-).

Note. The flow direction is not specified on the dust and pollen filter -A- for this vehicle (the same filter is installed for left-hand and right-hand drive vehicles).

DUST AND POLLEN FILTER WITH ACTIVATED CHARCOAL INSERT, GENERAL INFORMATION

1. The dust and pollen filter is available in different versions, without and with a filter insert with activated charcoal. A dust and pollen filter with activated charcoal insert is currently installed in vehicles with the "Comfort" air conditioning system. A dust and pollen filter without activated charcoal insert is currently installed in vehicles with the "Basis" air conditioning system.
2. The dust and pollen filter with additional activated charcoal filter insert is installed in vehicles with the "Comfort" air conditioning system. These vehicles also have an air quality sensor -G238- installed.
3. The filter with the activated charcoal insert performs the same task as the dust and pollen filter. It can also filter gaseous pollutants such as ozone, benzene, nitrogen, etc. out of the air inside the vehicle. The basic task of the activated charcoal insert in the dust and pollen filter is to keep peak loads out of the passenger compartment.
4. The activated charcoal insert also removes certain gaseous contaminants from the air inside the vehicle. The activated charcoal layer in the dust and pollen filter works different on various pollutants in the air

certain pollutants are trapped in the activated charcoal layer.

others are converted to harmless compounds as in a catalytic converter.

for the remainder, the activated charcoal functions as a condenser. When the load increased, pollutants are first absorbed until a certain saturation point is reached. If the amount of pollutant decreases, the activated charcoal layer continuously releases the absorbed particles.

1. Because the activated charcoal layer also absorbs a portion of the gaseous particles permanently in addition to dust and pollen, the filter may need to be changed earlier than specified when under the following conditions

When operating the vehicle in areas with continuous heavy air pollution. The activated charcoal layer in the dust and pollen filter is saturated earlier than intended.

When operating the vehicle with the "automatic recirculation" function switched off most of the time.

1. On vehicles with an air quality sensor -G238-, the air conditioning system should be operated in the "automatic recirculation" function as much as possible. However, if it is necessary or desired to switch the function off, observe the following

The activated charcoal layer in the dust and pollen filter will become saturated after a certain amount of time.

A saturated filter cannot absorb any more pollutants so they will enter the vehicle.

1. The basic task of the activated charcoal insert in the dust and pollen filter and the air quality sensor -G238- is to keep peak loads out of the passenger compartment. Keep the following in mind

If the vehicle is traveling in an area with relatively clean air (with minimal gaseous pollutants in the air), the system will switch from fresh air mode to recirculation mode at a different time than when traveling an area with a high constant level of pollutants (e.g. an industrial area).

The switch from fresh air mode to recirculation mode always takes place whenever the amount of pollutants increases, regardless of what the constant level is (e.g. when driving in the exhaust cloud from a diesel truck).

TIE RODS, CONTROL ARMS, BALL JOINT AND DRIVESHAFTS, CHECKING PLAY, FIT AND SEALING BOOTS

Note. This test must be performed with vehicle raised (wheels hanging).

Check play by moving tie rods and wheels.

Scheme 183

1. You should not feel or see any play.
2. Check all around the ball joint boots -2- for damage and correct seating. Use a mirror, if necessary.

1. Ball joint boots can usually be recognized by leaking lubrication.

Check all around ball joint boots -arrows- for damage and correct seating. Use a mirror, if necessary.

Scheme 184

Scheme 185

1. Ball joint boots can usually be recognized by leaking lubrication.
2. You should not feel or see any play.

Control Arm

With unloaded wheels, check relative movement of wheel bearing housing to control arm.

Scheme 186

By raising and lowers the wheels several times by hand -arrow- the relative movement between wheel bearing housing and control arm can be observed.

If relative movement when lifting or lowering gives evidence of play that can be felt or seen, control arm must be replaced.

Driveshaft Boots

Check all around interior and exterior driveshaft boot for damage and correct seating. Turn wheel, if necessary.

1. By turning the front wheels, tears can be found in their early stages.
2. Driveshaft boot damage can usually be recognized by leaking lubrication.

TRANSPORT MODE, DEACTIVATING

Special tools and workshop equipment required

1. Vehicle Diagnosis, Testing and Information SystemVAS 5051/5052

Transport mode is for maintaining a vehicle's startability (battery charge). Transport mode limits discharging of battery. If transport mode is activated, many functions are not available or have limited function, for example, CD changer is deactivated, radio is deactivated, etc.

Deactivate Transport Mode Using Guided Functions

Follow these steps in sequential order.

1. Connect VAS 5051/5052
2. Guided Functions
3. Select brand and model
4. Service Work
5. Transport Mode, Deactivating

TRANSPORT PROTECTION, REMOVING FRONT AND REAR SUSPENSION STRUT PROTECTORS

For some models the front and rear suspension struts have transportation protection devices installed. These models can be identified by a tag attached at the mirror -arrow-.

Scheme 187

Release coil spring (for example, put vehicle on lift)

Note. It is not necessary to remove the wheels. Be careful not to damage surface of coil springs.

Front Strut

Pull auxiliary strut -2- downward.

Scheme 188

Remove 2 transportation protection devices at each strut -1-.

Install auxiliary strut -2- by sliding up in spring retainer.

Rear Strut

Pull auxiliary strut -2- downward.

Scheme 189

Remove 2 transportation protection devices at each strut -1-.

Install auxiliary strut -2- by sliding up in spring retainer.

UNDERBODY PROTECTION, INSPECTING FOR DAMAGE

When inspecting visually, observe underbody, wheel housings and sills!

Scheme 190

1. Remove the additional covers -1- and -4-.
2. Do not remove the plenum chamber cover -3-.
3. First unclip both covers from below, then release the rear retainers -2- (press together lightly from below) and remove upward from the plenum chamber cover.

1. Check for dirt or contaminants inside the plenum chamber.

Note. If there is dirt or contamination, clean large objects from the drains (left and right grommets) and the area under the brake booster, e.g. using a commercially available flexible gripping tool. Fine deposits and mud can be removed, for example, using a thin water hose or a pressure cup spray gun VAG 1538 and a flexible nylon tube VAG 1538/2.

FACTORY-EQUIPPED WINTER TIRES

Note. On vehicles that were delivered from factory with winter tires, check for correct pressure during delivery inspection. Refer to. The excessive speed warning sticker should be placed in driver field of vision.

CLOCK, SETTING

Note. See MMI owner's manual

Note. Observe waste disposal regulations!

Special tools and workshop equipment required

Scheme 191

Scheme 192

1. Spark plug wrench 3122B
2. Ignition Coil Puller T40039

Removing

Remove engine cover. Refer to ENGINE COVER, REMOVING

Open both screws on the connector strip.

Using the puller T40039 remove all the ignition coils approximately 30 mm out of the spark plug shaft.

Scheme 193

Release the connector and pull all the connectors at the same time from the ignition coils.

Remove spark plugs using spark plug wrench 3122B.

Install new spark plugs.

Installing

Loosely place all ignition coils in spark plug shaft

Align ignition coils to connectors and place all connectors evenly on ignition coils.

Scheme 194

Press ignition coils evenly by hand onto spark plugs (do not use a hammer).

Tightening Specifications

Installation is the reverse of removal.

3.2 FSI

Removing Spark Plugs from Cylinder Bank 1

Remove the air filter housing lower section.

Scheme 195

Remove the screws from the ignition coil wiring harness.

Release electrical connectors and remove them evenly from ignition coils.

Removing Spark Plugs from Cylinder Bank 2

Remove the coolant reservoir -arrows-.

Scheme 196

Disconnect the connector for the Engine Coolant Level (ECL) Warning Switch -F66- on the bottom of the coolant reservoir and move the reservoir with the coolant hoses still connected -1, 2- and -3- to the side.

Remove bolts -arrows-.

Pull the ignition coil about 30 mm out of the spark plug shaft using a puller T40039.

Continuation for Both Sides

Scheme 197

Remove the ignition coils using the puller T40039.

Remove spark plugs using spark plug wrench 3122B.

Install new spark plugs.

Installing

Installation is the reverse of removal.

Loosely place all ignition coils in spark plug shaft

Align ignition coils to connectors and place all connectors evenly on ignition coils.

Press ignition coils evenly by hand onto spark plugs (do not use a hammer).

Tightening Specifications

3.0TFSI

Removing

Remove the engine covers -1- and -2-.

Free up the fuel line -4- and the line -1- from the EVAP canister on the air filter housing and air duct pipe.

Scheme 198

Remove the vacuum hose -2- from the connection on the air duct hose.

Remove the air duct pipe by loosening the hose clamp -3- and opening the clamps -arrows-.

Remove the air filter housing.

Remove the screws -arrows- and disconnect the connectors on the ignition coils.

Scheme 199

Move the wiring harness slightly down.

Note. Ignore -1 and 2-.

Left Cylinder Bank 2

Remove the coolant reservoir -arrows-.

Disconnect the connector for the Engine Coolant Level (ECL) Warning Switch -F66- on the bottom of the coolant reservoir and move the reservoir with the coolant hoses still connected -1, 2- and -3- to the side.

Remove the screws -arrows- and disconnect the connectors on the ignition coils.

Scheme 200

Move the wiring harness slightly down.

Note. Ignore -1, 2 and 3-.

Continuation for Both Sides

Remove the ignition coils using the puller T40039.

Remove spark plugs using spark plug wrench 3122B.

Install new spark plugs.

Installing

Installation is the reverse of removal.

Loosely place all ignition coils in spark plug shaft

Align ignition coils to connectors and place all connectors evenly on ignition coils.

Press ignition coils evenly by hand onto spark plugs (do not use a hammer).

Tightening Specifications

See also:
• Removal and Installation
• Removal and Installation
• Removal and Installation
• General Information
• Description and Operation
• Description and Operation
• FUEL INJECTOR CLEANER G17
• MEASURED VALUES BLOCK 32, READING
• ENGINE COVER, REMOVING
• WINDSHIELD WASHER SPRAY NOZZLES, REMOVING AND INSTALLING