20 Most Recent 1996 Audi A6 Questions & Answers

EGR stands for Exhaust Gas Recirculation.If there is no vacuum to EGR valve then Verify that all vacuum lines are properly routed, not kinked or twisted.Also check the vacuum lines properly connected to their respective hoses. The EGR valve is controlled by a solenoid to give two modes of operation:
When the solenoid is off vacuum from the plenum opens the valve. So when intake vacuum reaches a certain level at around 3500 rpm the EGR valve opens and dumps exhaust into the intake for emission purposes.This happens all the time when driving.
The ECU can also turn on the solenoid and provide vacuum to open the valve. The ECU randomly tests the system for operation to make sure the emissions system is working. This is just a test and is not all the time.If this test fails it sets the CEL.
Unfortunately as the cars get older, blow by gas condense and block up the EGR port, which then needs to be cleaned.The EGR mod allows the valve to open when the ECU tests the emissions but not allow the plenum vacuum to open it.
Thus the valve is open less often, this means potentially more power and that the EGR passage will block up less often.However the EGR passage must still be unblocked for it to work.----------Replace the EGR valve solenoid.If cleaning the valve is not helping. -----------This will help.Thanks.Helpmech.

Usually it's a leaky thermostat allowing to much coolant to pass through it when it's closed.To check this, clamp off top rad hose completely(acting like a closed thermostat) If you have hot air from the heater now ,you do need a replacement thermostat.

Is the line leaking a metal line or "hose" line. You really should replace the line...USE FLARE NUT wrenches ONLY...!!!!! A metal line can be spliced using copper line, a flare tool, compression flare fittings,etc.. A good mechanic will be able to help. Any leaking fuel line should be replaced... ,, USE FLARE NUT wrenches ONLY...

Find out the diameter of the line and get some tubing and compression fittings at a hardware store.

If you car has been running without a tube then it should be ok without one. All the Walmart Store is doing is to cover themselves as well as sell you a more expensive one. I would shop around and get other opinions. I am not saying you do not need one but get other advice. Could save you some money. I had one store say that a certain part would not work on my Buick but another mechanic installed it and two years later it is still working.

Duplicate.

You will need the dealer to provide this info.

Is the car in park?

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Pull out the left most knob on the dash that controls the dash lights, turn to the right or the left.

you didnt mention the size of an engine, this is 2.8l petrol

usaully located at the bottom of washer tank where you fill the window washer fluid some have fuses in the fuse box others the wires corrode or break at the pump or pump burnt

Most likely the thermostat has failed and is stuck open. It's a lot of work to change, and it's common on the 2.8L. Here's a pic of my car a few weeks ago when I changed mine (yes, you do have to remove the front of the car - no other way to do it):

http://farm3.static.flickr.com/2456/4026320040_32ef32e2d2_m.jpg

Copy and paste that into the browser. If you're near upstate NY, reply here with contact email address - I can do the job for you.