Re: How do i diagnose bad n75 valve?? if your looking at the valve there are 3 vacuum hoses going to it. unplug the one on the top and test drive it. DO NOT GO WOT! make sure you keep an eye on the boost cause your wastegate will not open. Unitronic stage 2, 3 inch turboback, Stasis SS coils Reply Boy Scout · #2 · Oct 28, 2010 I have to add .5 quart every 4k miles Mileage is about 20 and I am usually pretty reasonable on driving I have the manual and it appears to operate fine so far clearance is LOW on the car you have to go around the bigger potholes --- Boy Scout --- * 2004 S4 4.2L Quattro (6-speed manual) * Convertible Location. Mount Cobb, PA. My Photo Gallery: 0. Can check your valve cover gaskets. Pull out the ignition coils and look in the holes where your spark plugs go. If there is oil inside, the gasket is leaking. Sent from my SM-N960U using Tapatalk. 02-14-2021 04:33 PM #3. F1Wolfgang. Glasnost Jon Hunt 06 glasnost-jon-hunt-06 2 Downloaded from legacy.ldi.upenn.edu on 2022-08-25 by guest reader. From classic novels that have withstood the test of The pin will fall down in the bell-housing and the trans will have to come off again If you have removed-reinstalled the slave several times and it is in properly then I really wouldn't know right away. If the pedal stop right away it is usually because something is not lined up right. 06-11-2015 03:59 AM #3. emcaha. 2006 Audi (B7) S4 4.2L 25th Anniversary Special Edition #167, SRP Racing Pedals, 245/35 ZR 19x9.5" ET 25 MRR Catalina's with 5mm Spacers on rear, (B5) Front Spring Perches, RS4 H-Sport (Hotchkis) Rear Sway, Apikol Snub Mount, 034 Motor/Trans mounts, ECS Performance Rear Differential Mount and 034 Rear Carrier Mount Upgrade, South Bend Feramic For example, the timing chain on Audi’s 4.2 V8 is located at the back of the engine requiring the whole engine to be pulled to be replaced. This leads to this being a $5k+ replacement job. While that is an extreme example, the point is the cost to replace is predominantly driven by the difficulty of replacing it and not the cost of the parts The most common causes for AC not cooling properly in Audi S4 are low or overcharged refrigerant, compressor malfunction, clogged cabin air filter, dirty condenser or evaporator coils, dirty or sluggish blower motor, and bad fuse or relay. Less common causes are clogged expansion valve or orifice tube, overcharged oil, faulty blend door gRLxg9.