My service light came on, I have 167,000 miles on 2001 Jetta TDI. What service is needed

My brother has one of these and his mechanic tried the quick fix for $1,000. Lasted 2 weeks. He wanted nearly $4000 more for rebuilt unit installed, so brother sold him the car cheap. (reliable mechanic for last 13 years and 6 cars.) How many miles on yours?

Very nice to know that somebody care of his car.I understood that this is 1.9 TDI JETTA in124000 miles.To avoid problems in the future you have to change gearbox oil by recommended from a manufacturer.Second-Check all wheel bearings/rear ones/ for noise.Also make suspension test. any way you have to visit vw workshop for full diagnostic of the JETTA

Engine trouble or service light. Could just be wanting an oil change, maybe something more. Is it running OK? Check owners manual for details about the light. You are probably still under warranty anyway, check with VW dealer. It may not cost you anything to fix.

OK, it's like 80,000 mi. to 100,000 mi. but every 30,000 mi. it should be inspected and serviced (tightened)..

Replace ECM power supply relay.

That specific transmission is known for failure. Sometimes it's premature failure (in your case) and sometimes they have 150k miles, but that specific automatic transmission will always fail.
There are plenty of stories online about premature failure of the 01M VW transmission...

check your fuel rail and fillter for drit and rust thin if so replace

My sincere apologies for the delayed response.
I am personally going back to answer your unanswered questions.

I do not know if you still need this information, however I am answering it either way.

The Serpentine Belt: visible on the outside of the Engine, should be replaced every 60,000 miles. The Timing Belt: not visible/inside the Engine, should be inspected/replaced every 100,000 miles.

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

Again my apologies...

There's a few that you can use - but in general

Use Full Synthetic only for the TDIs...

There's various schools of thought after that in terms of 5x 30, 5w 40, even 0w 30 or 0w40

I've been using Castrol Synthetic 5w 30. The original specs for my 2000 Jetta TDI may have been for 5w40 oil formulated for diesels - but with the Synthetics now I think the 5w30 is felt to be the best in terms of what works best in the Turbo

You can probably go every 5,000 to 7,500 miles between changes - a good thing since the synthetic oils are more expensive

by the way, some also suggest changing the fuel filter at every oil change. I'm thinking that's a bit much but others may disagree... maybe ever 15,000 miles for me

needs a tune up