OK. This isn't related to my S3, its relating to our AUQ engined (180bhp) Golf. But...I figured it would be ages before anyone would read it in the Volkswagen forum on this site, hence me putting the post here. Forgive me mods and Admins. /ubbthreads/images/graemlins/laugh.gif
When cold, for the first few handful of junctions etc., the car is very jerky, when setting off. Almost spluttery, but isn't spluttering. Its definitely not a misfiring coil-pack. Well not yet anyway. Its like kangarooing when you were a learner. I initially thought it was just the missus driving, but it does most of the time when the car is cold.
About 2-3 months ago, the engine check light came on, and we had the Coolant Temp Sensor changed under warranty. However, they botched the job, getting an unknown amount of coolant in the engine bay. Which they (warrington VW) got steam cleaned. Idiots.
My first thoughts on this problem are:-
1) Temp sensor, not fitted correctly?
2) Is it the green version?
3) Did they replace the O-Ring?
4) Did they put the correct amount of coolant back in the car? And was the coolant / water mix right?
How do I check the coolant mixture?
Where do I get coolant from?
How can I drain a bit of coolant out?
If its not the Temp Sensor, I'm thinking...
1) MAF...well did some logging last night, seems to be performing as it should, flowing 147 g/s, which is about 183bhp
2) Coil-packs and spark plugs
Is there anything else that you guys can think of that can cause this jerky cold running?
Cheers
AL
When cold, for the first few handful of junctions etc., the car is very jerky, when setting off. Almost spluttery, but isn't spluttering. Its definitely not a misfiring coil-pack. Well not yet anyway. Its like kangarooing when you were a learner. I initially thought it was just the missus driving, but it does most of the time when the car is cold.
About 2-3 months ago, the engine check light came on, and we had the Coolant Temp Sensor changed under warranty. However, they botched the job, getting an unknown amount of coolant in the engine bay. Which they (warrington VW) got steam cleaned. Idiots.
My first thoughts on this problem are:-
1) Temp sensor, not fitted correctly?
2) Is it the green version?
3) Did they replace the O-Ring?
4) Did they put the correct amount of coolant back in the car? And was the coolant / water mix right?
How do I check the coolant mixture?
Where do I get coolant from?
How can I drain a bit of coolant out?
If its not the Temp Sensor, I'm thinking...
1) MAF...well did some logging last night, seems to be performing as it should, flowing 147 g/s, which is about 183bhp
2) Coil-packs and spark plugs
Is there anything else that you guys can think of that can cause this jerky cold running?
Cheers
AL