All A4s came with rust proofing. Its even under warranty. Late 90s+ audis don't rust unless they've been neglected/crashed.

 

this is good news..cuz my 96 gti already started to rust(surface) after 7 years..the hatch was a common problem...but after 7 years...good to know Audi's will hold up better!!!!!

 

the only rust i've noticed is on the brakes. not even my stock exhaust had rust, and my car has been in south florida its whole life, maybe 5 miles at most from the beach. my mustang on the other hand had rust on a bunch of spots on the body and underneath.

 

for being in Buffalo, NY for it's whole life, where snow is predominant, my '98 has been doing pretty damn good. a little spec of rust on the trunk but thats about it. i love Audis

 

any areas I should be aware of that rust would form before others??

 

Actually being a stainless system (just like most aftermarket systems) instead of the sh*tty aluminized steel that most OEMs use (for cost considerations), it should last a long, long time. I don't wash my car weekly in the winter, but if we get a small break where it's going to be up near 40 or so, I'll wash and dry it just to get the crap off the car. I keep my interior clean year-round, but here, where we've gotten wind-chill induced temps in the -30s in the last couple years, I don't wash it regularly during the winter - too much chance of weather seals freezing and tearing when a door is opened. But if we get a warm snap, I'll clean 'er up. Now in the springtime, my "spring cleaning" wash will take me literally all day and sometimes into the next - car on jackstands, wheels off and cleaned inside and out, full engine detail, hose down the underside, scrub caked-on crap off, claybar, new polish, new wax, the whole works. It's tiring and kind of a pain in the ***, but it's worth it to keep a nice car looking like it should.

 

yeah I know it's not good to wash when it's below freezing....but some times it's like that for weeks...I don't think the odd carwash would hurt..plus I take it in to a detailing shop so they wash the car inside where it's nice & warm

 

Yeah that's a better way to do it, but just going to a spray-it-yourself place can cause problems, unless you get a spray can of 100% pure silicone (AutoZone), spray it on a rag, and wipe down your weatherseals after you dry the car. That'll keep them from freezing to the doors and glass.

 

perforation rust is when it rusts from within meaning a deformation/poor qualityof the metal then we have perforation rust is when yo get a stone chip and dont deal with it so they can bend the law and its worthless ( deal with it ) auto car wash wow never[:-]

 

plus I know that parking in a heated garage is also a nono when it comes to rust..esp when u have salt on the car