Top 20 2004 Volkswagen Passat Questions & Answers

The first video should help https://www.google.com/search?q=2004+VW+Passat+2.0L.+Turbo%2C+air+temperature+sensor ..

As we tell everyone else who comes on here with warning lights: When there's a warning light on, that means a trouble code is stored in the computer. Don't ask us to guess what caused the light to go on when all you have to do is get the trouble codes read.

Change oil and replace with Mobil One and Mobil’s Oil filter.

run the fault codes and look for PCM bus communication problems could be a bad ground problem

coils burn from over voltage could be a problem ECM Have the electronics professionally checked

Yes indeed... (suggestions) Get your CODES read... Preferably at an EXHAUST shop... They (in my opinion) are much less likely to try and sell you those OXYGEN SENSORS you will be "offered" at AUTOZONE... (useless). OXYGENS SENSORS seldom make the news... like thermometers in FLU-season: they merely report the news... A BLOCKED exhaust system will perform exactly as you have described...!! Check out all the prices of all the PARTS you can throw away MONEY trying to surround the trouble a CATALYTIC converter/muffler COST will pale by comparison... (go to rockauto.com or AMAZON). In my humble opinion Carnac the Magnificent

code p 0130 refers to the heated oxygen sensor (HO2S) 1 bank 1 code p 0139 refers to HO2S 2 bank 1 the HO2S is the ones in the exhaust manifold or pipe before the cat converter

Electronics on car may have to be reset. check with VW for the code.

Greetings, I read your question and I think Reliable-Store can help you in this. Here's the site link. Volkswagen Service Manuals

Take it back and make them fix it, if they refuse sue them in small claims and/or contact your state's consumer protection office (or bureau of automotive repair if you have one) and file a formal complaint, that will get them moving.

HEATER CORE

Will need more information, but if you have been noticing a slow and steady decline in power, probably a clogged catalyst converter which is common problem with loss of power without a distinct miss in engine indicating a tune up is needed. If you can get car scanned for codes it will point you in right direction. Often times the national chains like Autozone and Advance Auto will do free scan if your mechanic won't. FREE-PPV.com

Yep. There are millions of them!

Disconnect battery live Get under car disconnect live into solenoid then the thin wire into centre of solenoid then remove three bolts holding starter one should have earth strap for engine attached Fitment is reverse of above but clert the starter terminal's with petroleum jelly before attaching wires to combat corrosion

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please be more specific ?

Need more info, does the coil get hot? Run it and as soon as it stops feel the coil and see if it's hot.

Yes. you can get an after market standard fits all type one for it. Hopes this helps Mike

By ot starting you mean the engine crank but doesnt start or simply doesnt crank let me no

if you can get it on a lift id check from your tank and follow all the lines up to your block, checking for leaks. does it smell like burnt gas or raw liquid?