Hi, i have a 53 reg mk4 golf which is currently at 50000 mileage. ive had an ongoing problems for the past two years with it which started off as the dashboard temperature gauge behaving erratically but with no obvious reasons for it(the car has been serviced twice since this started happening and the mechanics coldnt give an explanation for this)

for the last few months the car has been losing power completely usually coming off the motorway and onto a slip road where my speed go down and the engine then seems to hae trouble managing this slowing down in power and speed. the engine also has problems sometimes when im doing 30mph it feels like theres a speed limiter on the car and it seems to judder.

yesterday the engine management light lit up permanently which has happened twice before . ive already had the ecu checked twice and both times the mechanics said it was the egr valve code but they were unable to find a fault with the unit itself and just wiped the code which made the car run fine for a few weeks.

have any of you any idea what would link all of these 3 things together or is it time to get a new car and quickly !

any help appreciated