I believe car is from Europe and has the blue square coolant temperature sensor. Other 1999s and later have green round sensor.
All B5's sold in the US were built in Europe, hence the European battery and German spare tire. (Although it's probably a replacement VW battery, as I doubt the original would still work after all these years.)I was thinking it's euro cuz it's got original German spare tire and vw battery. Don't Really know. If what I read is correct be switched mid year 1999 from blue square to green round on all models. The green one is listed as compatible with my car and all other 99s on some parts sites. Thanks for info on head. Would not have noticed.
@I Will be trying the g12 if there is no more leaks. I It looks like it has had only water for about 10 years. It's a 1999. I bought last year with only 37000 miles on it. I Have learned a lot about sludge and turbos since. Every thing on car is original or warranty work only. Changed to 710n dv and pcv and got oil to stop blowing out oil cap and some turbo lines. Imo on sludge is too much slow/easy driving. Run the turbo hard regularly. It's supposed to be used. Make sure to hit at least 6k rpm. I believe this clears out sludge and if some is sucked through at a high rpm it will grind it through to small pebbles. the first oil filter I changed was the original manufacturers size. Vw changed to larger oil filter to combat sludge issues around 12 years ago. I've
What makes you think it only had water all these years? Was what you drained rusty water?Changed the oil ten times since March, about 11000 miles. It still comes out black with small black pebbles after only 1000 miles. I've used 6+ bottles of sea foam in crank case to help. It Is staying a little cleaner, longer each change. :smiley:my first car was a 1987 gti:smiley: 1.8 engines are great. This sight has been very helpful with old threads covering the issues I've had so far. Could do without the spam to email tho:grin:
Nil, Zero, Zilch.I stopped sea foam, it only can help so much.
The APH is like the other 1.8t heads in that it's small port. The AEB head has larger ports. This isn't a huge problem but will probably effect maximum performance somewhat. I'm assuming they kept the stock AEB intake manifold.Anything to know about APH head difference than the ARB original?
That's probably the ECM getting cleared from lack of power and forgetting learned fuel trims. Without fuel trim correction, it runs a bit rough. Then after a bit of driving, it re-learns how much to correct fueling and begins to run smooth again.When unhooking battery my car sometimes will run funny when in gear while stopped, especially reverse. This problem will correct it self in 30-70 miles.