Tried moving it several times, cant get the middle to stay flush with the rest of the lip, also the sides look out of place.

I started to smell fuel and when I popped the hood I saw it was leaking from this fitting. Would this be an O-ring? It’s freezing here now and it’s dark but tomorrow I’m gonna see if maybe it just needs to get tightened.

Has anyone else had this happen to them?

Do you regret it? Do you have blue or standard? My passenger side is finally failing and while I love keeping it OEM I know it will fail again eventually…

Ive changed 5 throttles, then the whole engine, i tried every "computer" or whatever these mechanics use. They just cant detect/read the throttle.

98 a4 1.8t q 5sm, alternator suddenly stopped charging, I can't find anything online about a fuse for the charging system on these cars, is there one that could be stopping the alternator from charging or is it just time for a new alternator?

My b5 a4 1.8t fwd. Gone to drive somewhere and couldnt get into the car, initially thought it was the key but realised the security light wasnt flashing. The actuators i couldnt hear with manual key turn and shook the car violently and alarm didnt go off, i cant physically get into the car to pop the bonnet, does anyone know of a way to gain entry or of a positive/negative point i can access?? RHD model

Hi Guys, just wanted to share some pictures of my s4 i built over the pas 12 months.

Hello,

Here is my problem: I bought my RS4 B5 with only one remote key so i wanted to have a second one. I bought a key, coded it on the immo with vag commander and vcds and it starts the car well. But now the first remote doesnt work. I tries re synchronising but it does nothing. If i go to measuring blocks of 35-central lockings in vcds, i see that remote signal stays at 0000 with both remote... The car doesnt reveive a signal. (central locking works well if i put the key in the lock or with the button inside, so the pump is working fine i guess) What do i need to do to make at least the first remote to work again ?

This lit up while driving and i have no idea what it is, can you guys help me?

Can any help me find the diagram I’ve looked everywhere and can’t find nothing??

Hello everyone! I just recently blew up the 01A transmission in my A4 1.8T Quattro Avant. I purchased a bunch of the parts to swap an 0A3 6 speed transmission (one that comes from a B6 or B7 S4) into the car (gearbox, bellhousing spacer, B5 S4 automatic driveshaft with adapter, V6 front subframe), and I have found that there are no heavily detailed swap guides to install an 0A3 into a B5. Would anyone be interested in a YouTube series that goes over what you need to swap the 0A3 into a B5? I’ve attached some pics of the parts I have acquired this weekend as well

Recently bought a used b5 a4 with the 1.8t and aeb head off my buddy. He apparently blew the turbo so I picked it up from him for $400.

The car has upgraded injectors Upgraded clutch Downpipe installed and some other random shit on it.

Anyways I replaced the ko4 and I’m having issue with driving the car. In neutral it revs up fine no issues it can sit on limiter all day. Once in gear I can rev slowly up to 4k rpms but after that the car shudders and won’t go past. I’ll post a video of it. Have codes for throttle body after installing a new one. (Old one also didn’t work) the car would turn on with the throttle body plugged in but once I rev it the car dies instantly. With it unplugged it hesitates but then revs up normally. Also have codes for MAF sensor.

Coming from Mercedes and bmw I have no clue what to even start with. Any help would be greatly appreciated.

So I got a 01 s4, the tank constantly thinks it’s topped out and stops every dollar or so. ( PAIN in the ass this winter) Not only that but the fuel gauge always stays at 3/4 even if it’s full? Could this be the fuel sender unit? Im a high schooler it’s my first car. Thanks!

Every time I go above like 10mph it comes on but then goes away it just came on and I’m stuck in traffic and it’s annoying with the beeping lol someone help please

Hey guys I have the 1.8T AEB engine.

If I want to do catless downpipe, what will I need to do to the lambda sensors?

EDIT: I want to keep the stack resonator and muffler, I meant to just remove the cat and substitute with a normal pipe.

https://carsandbids.com/auctions/9WLJJeOB/1998-audi-s4-avant

Extremely clean. Thought somebody would like to look at it here

Hey guys! I have been wondering how my 1.8t car would sound without the middle muffler… has anyone done it? If so, can you show vídeo? :)

Which would you prefer? I’m trying to see.

I’m still hella new into the 1.8t And this broke off pretty it’s a check valve or something, car runs like shit ever since the shit broke any clue what the part number is. It goes to the turbo inlet.

Hello, I have a problem with my air conditioning. I have a 98' A4 B5 with automatic climate control. The air conditioning always worked without any problems until it got cold. Since then the air conditioning no longer works. The button no longer clicks into place. It shows the climate symbol, but as soon as I release the button the climate symbol also goes away. Fuses are all good. Can someone please help me?

Hey all - I got this yesterday for cheap and I'd like to make sure this is safe to be used in our cars. It does say 1996-2007 Audi and it's got the same specifications as G12 in regards to being phosphate-free, silicate-free, and compatible with aluminum engines and radiators.

I'm planning on doing a coolant change early next year, so I'd like to use this if it's fully compatible with the 1.8T.

Thanks in advance!

Hello, I have an Audi A4 B5 without a Bose sound system. I bought an Audi Concert 1 radio. But the front speakers are not controlled, only the rear speakers/subwoofers. The radio is not Bose coded. Is there any way to teach the radio so that all speakers work? (When I stretch out the cable, all speakers work, but as soon as I turn the radio on and off, only the subwoofer works again.) Thanks

I had read somewhere that the stock throttle body boot tends to tear, so I checked mine, and lo and behold, I had a 2-3 inch hole causing a massive boost leak. It took 30 days to get the new TBB, but whatever—once I installed it, the car was way smoother and faster. However, now it seems like the extra power is making my transmission unhappy. I have the ZF HP19 (a crappy auto). It happens mostly when in sport mode, and it feels like the transmission is slipping or unsure of what to do. A flashing check engine light appeared, but it went away every time. However, the ABS and TC lights stay on until I turn the car off and back on. What’s my next step in getting the drivetrain back in tip-top shape? Should I flush and refill the transmission, or could this be something else? This is a 2004 A6 s line with the 2.7t, I know it’s not a b5 but there aren’t many other active communities that are knowledgeable of the 2.7t.

I acquired an FMIC kit for my big turbo project (FINALLY!!!) and it looks great! Lots of cutting for the bumper to make it look like I imagined but we got there eventually. First pic is how it was done on the previous owner’s car (not to my liking or his either since he bought the car like that). Next few are of it on my car