Engine Controls - Service & Adjustment Specifications BMW Z4 E85/E86

INTRODUCTION

Use this article to quickly find specifications related to servicing and on-vehicle adjustments. This is a quick-reference article to use when you are familiar with an adjustment procedure and only need a specification.

BATTERY

BATTERY SPECIFICATIONS

6-CYLINDER FLUID CAPACITIES

6-CYLINDER FLUID CAPACITIES

V8 FLUID CAPACITIES

V8 FLUID CAPACITIES

V12 FLUID CAPACITIES

V12 FLUID CAPACITIES

AUTOMATIC TRANSMISSION FLUID TYPE

Note. Automatic Transmission Fluid (ATF) was developed especially for automatic transmissions. It requires additives which are carefully matched with each other, a high viscosity index and a solidification point below -40°F (-40°C). Friction behavior of ATF in plate-type clutches under very different operating conditions is extremely important. Other important factors are: Wear protection Oil film shear resistance Adhesive property Oxidation resistance Corrosion inhibition Sludge prevention Temperature-dependent viscosity changes Compatibility with sealing materials

GM Transmissions (A5S360R/390R)

Transmission oil pan will be labeled with either Texaco ETL-7045 or Dexron-III. Fill or top off with proper fluid only. DO NOT mix Texaco ETL-7045 and Dexron-III fluids.

ZF 3HP22, 4HP22 & 4HP24

Transmission identification plate can be utilized to determine proper transmission fitted in vehicle. Transmission utilizes Castrol TQ or Texaco Havoline automatic transmission fluids of the Dexron-III formulation. DO NOT mix any other oil with this transmission fluid when doing repairs or topping off.

A5S325Z (5HP19) & A5S440Z (5HP24)

Transmission identification plate can be utilized to determine proper transmission fitted in vehicle. No subsequent transmission fluid changes are necessary. DO NOT mix any other oil with this transmission fluid when doing repairs or topping off. Use ESSO LT 71141 (BMW Part No. 83229407807).

GA6HP26Z

Transmission identification plate can be utilized to determine proper transmission fitted in vehicle. Transmission fluid has a condition based service interval of approximately 100,000 miles. DO NOT mix any other oil with this transmission fluid when doing repairs or topping off. Use Shell M-1375.4 (BMW Part No. 83220142516).

AUTOMATIC TRANSMISSION FLUID LEVEL CHECK

Note. Checking fluid level may be necessary if there is evidence of a leak, a complaint related to fluid level, or repairs made to transmission.

Transmission Without Dipstick

To top off transmission after a repair, put selector lever to setting "P". Vehicle must be horizontal and secured to prevent it from rolling away. Unfasten filler screw. Top off automatic transmission using filler neck attached to filler aperture until oil emerges at filler/overflow bore. (Scheme 1) Start engine. Top off automatic transmission again until oil emerges at filler/overflow bore. Screw in filler plug. (Scheme 2) Operate brake and, with engine at idle speed, shift transmission through all gears several times. Connect BMW's GROUP TESTER ONE (GT-1) or DISplus hardware system to vehicle and perform oil level check in accordance with manufacturer's instructions. Replace sealing ring. Tighten drain plug to 11 ft. lbs. (16 N.m).

Scheme 1

Scheme 2

Service Interval Indication

On all models except 7-series, service interval indicator consists either of colored LED blocks or actual mileage remaining until next service. Service indicator (which displays OIL SERVICE, INSPECTION I or INSPECTION II) can be reset using the reset mode in the instrument cluster. See SERVICE INTERVAL LIGHT RESET (ALL MODELS EXCEPT 7-SERIES) .

The 7-series models use a Condition Based Service (CBS) service interval system, which displays a Service Need Display (SND). When ignition is on, Service Need Display appears under the speedometer in the instrument cluster for 10 seconds in the place where the fuel tank level is normally displayed. The first line corresponds to the mileage dependent service items. It specifies the mileage when the next service is due. If the mileage is exceeded (service overdue), it appears with a minus sign. The second line corresponds to the time dependent service items and is displayed by a clock symbol. It specifies the weeks/months/ years when the next service is due. If the service is overdue, it appears with a minus sign. The actual service item (with additional information) can be viewed in the control display. For 7-series reset procedure, see CONDITION BASED SERVICE (CBS) LIGHT RESET (7-SERIES) . For 7-series service maintenance intervals, see 7-SERIES SERVICE MAINTENANCE CHECKLIST .

Service Interval Light Reset (All Models Except 7-Series)

Reset service light by performing the following

1. Ignition key must be in OFF position.
2. Press and hold trip odometer reset button in the instrument cluster (left button), and turn ignition key to first position.
3. Keep the button pressed for approximately 5 seconds until one of the following words appear in the display: "OIL SERVICE", or "INSPECTION", with "Reset".
4. Release reset button and press it again until " reset" begins to flash in the display. (Scheme 3)and (Scheme 4).

Service due is shown with "reset" if coded minimum consumption limit has been reached and resetting is possible. If "reset" is not shown, minimum limit has not been reached and resetting is not possible.

1. While "reset" is flashing, press left button briefly to reset service interval. After display has shown new interval, following will appear: "END SIA".

System can only be reset again after 2.5 gallons of fuel have been consumed.

Scheme 3

Scheme 4

Condition Based Service (CBS) Light Reset (7-Series)

Service reset is accomplished using instrument cluster. On future models, diagnostic tester will reset indicator

1. To reset a service, press the reset button on the top left part of instrument cluster for more than 10 seconds with ignition ON. This brings you directly to reset mode.
2. A menu appears in the speedometer. At the top is the BACK function, then the first 3 service items. (Scheme 5)and (Scheme 6).

Residual wear or remaining time are specified (possibly with a minus sign). The "1" symbol means that you can reset service operation (early production vehicles may show an "F"), while a "0" indicates it is not resettable (the first 20 percent of the service interval is also protected against accidental reset). You can scroll through the service items by pressing the reset button or the lower button (CC button) on turn signal switch. When you have selected a service item, press reset button for more than 2 seconds to display a 2-line menu in tachometer. "Back" function is at top, resettable service item is below. Now select service item with reset button (or CC button) and press and hold reset button again. In a third menu line, further down, system confirms that reset volume was successful. Whole interval for service operation is shown in SERVICE NEED INDICATOR using control display. For additional information about Condition Based Service (CBS), see

RESETTING & CORRECTING CONDITION BASED SERVICE

under PROGRAMMING in SELF-DIAGNOSTICS article.

Scheme 5

Scheme 6

7-Series Service Maintenance Checklist

Condition Based Service (CBS) will determine which of the possible maintenance services listed below are required for a particular service visit.

Standard Operations

1. Brief diagnostic test.
2. Verify Check Control messages.
3. Check indicator and warning lights.
4. Reset CBS display.

Engine Oil

1. Change engine oil and oil filter. BMW recommends BMW High Performance 5W-30 synthetic oil (07 51 0 017 866).
2. After every fourth engine oil change, replace air cleaner filter.

Microfilter

1. Replace.

Front Brakes

1. Brake pads: replace. Clean brake pad contact points in calipers.
2. Brake discs: check surface and thickness.

Rear Brakes

1. Brake pads: replace. Clean brake pad contact points in calipers.
2. Brake discs: check surface and thickness.
3. Parking brake: check condition, brake lining thickness and function.

Vehicle Check

1. Check operation of horn, headlight flasher and hazard warning lights.
2. Check instrument and control lighting, and heater-A/C blower.
3. Check lighting system: turn signals, back-up, license plate, interior (inclding map reading lights), glovebox, flashlight, luggage area lights.
4. Safety belts: check condition and function.
5. Check windshield wiper and jet positions.
6. Body: check for corrosion.
7. Tires: check tread depth, wear pattern, outer condition, inflation pressure (including spare).
8. Battery: check state of charge ("magic eye") and recharge if required.
9. Power steering reservoir: check fluid level.
10. Visually inspect all SRS airbag units for torn covers, obvious damage or attachment of stickers.
11. Function of rear-view mirrors.
12. Coolant: check fluid level and concentration.
13. Windshield washer system: check fluid level and protection level.
14. Brake system connections and lines: check for leaks, damage and correct positioning.
15. Underbody: all visible parts including transmission, rear axle and fuel tank. Exhaust system: check for damage, leaks and corrosion.
16. Steering components: check for clearance, leaks, damage and wear.
17. Parking brake: check function.
18. Final Inspection: road test with check of brakes, steering, shock absorbers (external) and transmission.
19. Brake fluid: replace every 2 years.
20. Coolant: replace every 4 years.
21. Spark plugs: replace every 100,000 miles.
22. Automatic transmission: replace ATF every 100,000 miles.

ENGINE COMPRESSION

Check engine compression with engine at normal operating temperature at specified cranking speed, all spark plugs removed and throttle wide open. The DME master relay and/or fuel pump relay MUST be pulled out for compression test. See ON-VEHICLE ADJUSTMENTS article for additional information.

COMPRESSION SPECIFICATIONS

VALVE CLEARANCE

Note. Engines with the exemption of Motorsport (S54) engine use hydraulic valve lifters and valve adjustment is not required. For Motorsport engine valve adjustment, see 11 34 004 ADJUSTING VALVE CLEARANCE (S54) .

CRANKSHAFT (SPEED/POSITION PULSE) SENSOR

Operation of crankshaft (speed/position pulse) sensor can be accessed using BMW's GROUP TESTER ONE (GT-1) or DISplus hardware system.

IGNITION COIL

IGNITION COIL RESISTANCE - Ohms @ 68°F (20°C)

SPARK PLUGS

Note. To change spark plugs on V12 engine, it is necessary to remove entire intake system.

SPARK PLUG TYPE

SPARK PLUG SPECIFICATIONS

FIRING ORDER

FIRING ORDER (1)

Scheme 7

Scheme 8

Scheme 9

IGNITION TIMING

Ignition timing is electronically controlled and is not adjustable. Ignition timing can be accessed using BMW's GROUP TESTER ONE (GT-1) or DISplus hardware system.

FUEL PUMP

Note. Fuel pump performance is a measurement of fuel pressure and volume availability, not regulated fuel pressure.

FUEL PUMP PERFORMANCE

INJECTOR RESISTANCE

INJECTOR RESISTANCE - Ohms @ 68°F (20°C)

IDLE SPEED & MIXTURE

Idle speed are mixture are electronically controlled and are not adjustable. Idle speed and mixture can be accessed using BMW's GROUP TESTER ONE (GT-1) or DISplus hardware system.

IDLE SPEED & CO LEVEL

Z3

ISC VALVE RESISTANCE - Ohms @ 68°F (20°C)

See also:
• ON-VEHICLE ADJUSTMENTS
• AUTOMATIC TRANSMISSION FLUID TYPE
• SERVICE INTERVAL LIGHT RESET (ALL MODELS EXCEPT 7-SERIES)
• CONDITION BASED SERVICE (CBS) LIGHT RESET (7-SERIES)
• 7-SERIES SERVICE MAINTENANCE CHECKLIST