Golf GT Tdi 115 - performance when warm.

do u have a service engine soon or check engine light on?

didnt know they made VW golfs in 1957 ,i knew they made a beetle with a air cooled engine in this year

Since exhaust gas (therefore lots of carbon) runs through the EGR it isn't uncommon for them to fail. Sometime a simple cleaning can put them back in service. You'll have to remove the vavle and use a strong cleaner (like carb or brake parts cleaner) to remove the carbon. Clean the valve and the area where the valve bolts to the engine. I've known this to save many people hundreds of dollars in a wasted repair. Good luck.

injectors may be bleeding down causing a loss of fuel pressure making it hard to start,or fuel pressure regulator,sounds like some kind of lack of fuel pressure

hi. i have a mark 5 golf gt tdi the air con doesnt work just had the air con gas checked and topped up no leaks.any ideas.

if you have a pd engine and you say that it miss fires i would change the wire loom to the injectors if it persists the air flow meter is on the blink, has you car ever gone into a limp mode status were you couldn't rev then check your turbo ,this may sound strange but just had a 150bhp tdi which was remapped with a very simular problem

believe it or not but i have seen a intermittant brake light switch cause that.
if you have a scanner monitor IAT ECT FUEL temp,when cold not running they should be with in 5 degrees from one another

We think it could be the engine management system - would recommend going to a reputable garage for it to be reprogrammed.
Sian

If you are losing water and it is not being forced out of the reservoir (unlikely) and ther is no sign of it dripping from the engine plumbing... then if your acceleration is starting to diminish... or you seem to not have as much power as usual, then it is probably a faulty cylinder head gasket... sorry.... hopefully not, as this is a bit of a job to fix.

worn coil pack?
its a problem with some golfs
type worn coil pack golf tdi on google and you should see everything on it. i think theres an uprated set out now don't quote me on it tho!