Engine turns over but does not start

you will have to disconnect 1 circuit at a time and find the problem, have many ideas at once, like 5 things changed at once, problem solved? 4 items were OK but you still don't know what the problem was. just 1 at a time

ok get in contact with i garage that have a data logger to clip on to your obd test outlet. you drive fore some days and just write the time down when th car is doing poorly then the garage can take the obd logger and se all engine parameters on that time the engine was lacking power. after that the garage can fix the problem just locking at fault codes don't give you the full picture. good luck Han

Have you tried changing the coil pack?

Is the cooling fan coming on and working? If not the fuse, or relay may be bad. Did you bleed all air from the system after the service, and did you replace the thermostat? If the thermostat was not replaced then replace it. If all this checks ok, then either the water pump has failed or the interior or exterior of the radiator is clogged. Use only G12 coolant in your VW.

Sounds like an hydralic tappet is failing, try not to do many miles, get someone with experience to have a listen as soon as you can the last thing you need is for it to do real damage and leave you stranded.

Fingers crossed it will be a small issue.

VW's are VERY strong engines :o)

Cylinder Head Assembly: Specifications
Torque & Tightening Sequence
Tighten cylinder head as follows:
Stage I .......................................................................................................................................................................................... 40 Nm (30 ft. lbs.)
Stage II ................................................................................................................................................................................................. 1/4 turn (90°)
Stage III ............................................................................................................................................................................................... 1/4 turn (90°)


_____________________________________________
Timing Component Alignment Marks: Locations
Caution: Incorrect removal or installation of the timing belt can result in damage to internal engine components.
- Turn crankshaft to cyl. 1 TDC (arrow) (Engine with manual transmission shown).
- Turn crankshaft to cyl. 1 TDC (arrow) (Engine with automatic transmission shown).
For complete Timing Belt Removal and Installation information: See: Timing Belt/Service and Repair

I belive they didn't reset the oil light timer. I belive the sequence is 1. key on (not acc with engine off)
2. step on the brake pedal 5 times within 10 seconds. 3. key off. 4. start car. 5. check if the light went out. you may have to try it a few times to get it.

THE STARTER IS GOING BAD

You need to charge your battery up more. Either get a battery charger or leave the jumper cables hooked up for a longer period of time.
Your battery was probably completely dead. You might even need a new battery...they really don't like to be completely drained.

Hi,

Two possibilities:
1. air bubbles along the fuel line or in the injector/pump;
2. clogged fuel filter/line.

Possibility #1 would require removal of air by bleeding or priming while #2 would require filter replacement or cleaning the line.

In some instances, it could be the fuel pump has some debris/dirt in the intake, impeller or discharge.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

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