Mk3 golf gti 8V 1995 (m) Oil in top of engine in rocker cover has a froth, salad cream type attached to walls of the rocker, i heard this was down to short running and never letting the car heat up?

well on the mk3 like mine its right under next the front mount of the engine,below the distruibutor,both mk3 and 4 8v's are the same motors just a different style of intake. good luck

Here is a very helpful link to a wiring diagram for your VW's fuse box.

Wiring Diagram for CE2 vehicles

I hope that this helps!

maybe, maybe not.

Please see my tip at http://www.fixya.com/cars/r5929960-s_thermostat . These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.

Did you resolve this?
I drive a mk3 golf GTI 8V and mine starts fine but after driving for about 3 minutes (engine warms up) it starts to misfire, the car stalls and then you can't start it again until the engine has cooled. Does this sound similar?

My mk3 1996 16v 2ltr was playing up, wouldnt start when cold, wouldnt rev above 4500-5000. I changed the ignition switch, ecu relay, petrol pump relay, plugs,plug leads, coil, and finally, checked the hall sender on the dizzy, and found a broken wire in the dizzy body. Got a 2nd hand dizzy from a breakers for 40 quid, (150 or more new) and all is well. (I actually took the car to two garages and they couldnt find the problems, no faults registered on vagcom).

sounds fuel hungry, is filter clean, using good fuel?. also check air filter

my first solution would be to check all the timing is set up properly and you will probably find that the distributor is not timed up right

its a valve sticking or a coil breakdown

The fitting on the fuel rail or you will have to use a adapter to the output side of the fuel filter

the tension setting for the belt?

or the timing marks? the timing marks differ. best set cyl. no 1 to tdc.. take out no. 1 spark plug and put sumthin long and thin down the hole.. like a long quarter drive extension.. and check to see that cyl 1 is at tdc.. then set your cam to the OT marks marked on the cam pulley and rocker cover... then you have to set the distributor also.. slacken the 13mm bolt for the dizzy clamp... you will find a line on the lip of the dizzy body.. this needs to align with the middle of rotor arm tip... (sumtimes a mark on the roror arm tip)... tension belt and your timing is set.. set your timing incorrectly and the car will run rough and not rev past 5k...