General, Technical Data - Engine - 2.5L - Engine Code(s): Cbta & Cbua: Other Volkswagen Golf Mk7

FUEL SUPPLY SYSTEM

Always observe the following when removing and installing the fuel level sensor or the fuel pump from a full or partially filled fuel tank.

1. Before starting work, switch the exhaust extraction system on and place an extraction hose close to the fuel tank opening to extract the fuel fumes. If no exhaust extraction system is available, a radial fan (as long as motor is not in air flow) with a displacement greater than 15 m 3 /h can be used.
2. Prevent fuel from contacting skin! Wear fuel-resistant gloves!

COOLING SYSTEM

Note. When the engine is warm the cooling system is under pressure. If necessary release the pressure before beginning any repair work. Secure all hose connections with hose clamps. Use spring type clamp pliers to install spring clamps. Always replace gaskets and seals. The arrows on coolant pipes and coolant hoses must line up across from each other.

IGNITION SYSTEM

To reduce the risk of personal injury and/or damage to the fuel injection and ignition system, always observe the following

Scheme 29

1. Do not touch or remove ignition wires when the engine is running or turning at starter speed.
2. Only disconnect and reconnect wires for the injection and ignition system, including test leads, if the ignition is turned off.
3. The fuel pump is activated by turning on the ignition and by a drivers door contact switch. If the battery was not disconnected, the connector -arrow- must be disconnected from the fuel delivery unit or the fuse for the fuel pump control module -J538- must be removed before opening the fuel system.

CLEAN WORKING CONDITIONS

When working on the fuel supply/injection system, pay careful attention to the following "5 rules" of cleanliness

1. Always clean the connection locations and the areas around them before loosening.
2. Place removed parts on a clean surface and cover them using lint free cloths.
3. Carefully cover or seal, unpacked components if repairs cannot be performed immediately.
4. Only install clean components: Remove the replacement parts from their packaging just prior to installing them. Do not use parts that have been stored loose (for example, in a tool box, etc.).
5. When the system is open: Avoid working with compressed air if possible. Do not move the vehicle unless absolutely necessary.

Scheme 30

1. Close off any open intake or exhaust passages with plugs whenever working on the engine to prevent contaminants from getting in. Use plugs from the engine bung set VAS 6122.

CYLINDER NUMBERING

Remove the engine cover with air filter. Refer to ENGINE COVER WITH AIR FILTER .

Note. Ignore the -arrow-.

Note. Cylinder 1 is located opposite the force producing side.

ENGINE NUMBER/ENGINE CHARACTERISTICS

Engine Number

The engine code -arrow A- and engine number -arrow B- ("serial number") are located on the rear side of the engine, above the partition of the cylinder block/upper oil pan.

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The engine code is also stamped on the right cylinder head and on the cylinder block.

A label with the "engine code" and "serial number" is also affixed to the toothed belt guard.

The first three digits describe the mechanical structure of the engine and are still stamped on the engine. The fourth position describes the engine output and torque. It depends on the Engine Control Module (ECM). Four digit engine codes are found on the type plate and vehicle data label. It can also be read via the ECM.

Engine Data