'02 GTI Problems

[wetfarm]

Hi, I bought a '02 GTI in Jan and since then I have had numerous problems and so far one of them cannot be fixed by the garage and I feel I may have another one occuring.

At first the temp gauge stopped working so I got the sensor replaced and it worked fine, then the engine light came on and they basically put it down to a sensor problem so that was sorted ok. Now is the fault that cannot be fixed...

Basically the fault is that STOP appears on the dash but doesnt light up any of the warning lights. When I first took it back to the dealer they said it was a faulty sensor on the coolant cap and cleaned it, took it away and the fault occured again. This time they replaced the sensor, once again the fault occurred, again they checked coolant levels and sensors and sent me on my way, once again it occured, when I took it back to the garage they couldnt get the fault ot occur and apparently becasue none of the warning lights are lighting up then an error code isnt being created so they cant source the problem.

My question is, is it a coolant issue or something else? The problem only occurs after turing right but not all the time.

The new faulti think may be occuring is that when sitting idling the engine seems a bit bumpy and over revs then drops and you can feel a slight judder when it is idling. I have a funny feeling the car is also running a little warm.

Hopefully someone out there can help.

Thanks

[Crasher]

Hello and welcome to the forum. Has the coolant bottle been replaced? Why do you think it is running warm?

[wetfarm]

Thanks for the welcome...

Coolant bottle hasnt been replaced. Think its running warm as I could swear I heard the fan running yesterday but could be wrong as well as the engine just not quite feeling right, if you know what I mean.

[SmokeyUK]

Which GTI do u own?? 1.8T, 2.0i etc...

[wetfarm]

Sorry, its a 2.0 115bhp

[Crasher]

If the gauge is on 90 in is not going above 112°c as that is the highest I have seen them go on the diagnostic display before the gauge moves over 90, scary I know but that is what happens. The fan running is a good sign, not a bad one-it means the coolant is circulating but it can also come on if the air con is set to auto.

[wetfarm]

Thanks crasher for putting my mind at ease re the fan though still concerned by the STOP warning appearing. Is there anything else it could be other than coolant?

[Crasher]

A dash fault is a possibility but that stop warning can come on for overheat, brake fluid, low coolant and oil pressure so without an accompanying note as to what it applies to…

[wetfarm]

Crasher, I take it by note accompanying it you mean a warning light to match the STOP warning? Its really frustrating.

Would the fact it only occurs when turning right narrow it down any?

[Crasher]

Yes, it normally says “coolant” or “oil pressure”. The cornering bit makes me think low brake fluid or coolant and Golf 4’s are prone to rear caliper hose leaks so check the brake fluid.