hey guys i was thinking if you can share a list of sensors and other things you have changed after you car's 150k miles? or a list of thing you suggest to change after 150k miles before they start making trouble.

 

Oh yeah... here's what I'd recommend:

-clean MAF sensor, and also clean IAT sensor
-replace air filter, replace cabin air filter
-replace oxygen sensors, particularly the primary (pre-cat) oxygen sensor
-replace fuel filter

If your timing belt/tensioner/water pump/thermostat were only changed once (or not at all), think about changing those. If all of them were done twice already then you don't need to worry about that.

Check anything rubber that's part of the air intake or vacuum system for tears. Basically if there's any part leaking air then you're not getting as much out of your engine as you should be.

See if you can look around the valve cover gasket (where the valve cover meets the head). If there's oil then you should replace your valve cover gasket, and since you're there, the cam chain tensioner gasket and half moon seal.

I think it would be worthwhile to clean the carbon deposits out of your throttle body as well.

 

coolant temp sensor, should be changed any time it looks like it hasnt been changed. It causes so many odd problems that its worth the 15 bucks and 1 hour to replace it.

 

All very good suggestions. I would also start thinking about shocks and control arms, 150k miles is about all you'll get out of those.

 

Ditto for transmission and diff fluids.

 

i cleaned my injectors, previous owner used mid grade and high grade every other i have 155000 on my a6