Audi A4 Clutch Replacement

Removing The Slave Cylinder And The Transmission Bolts

8. Remove the slave cylinder. audi a4 slave cylinder

Extension to the rescue. Use a swivel to reach the allen bolt. audi a4 slave cylinder removal

Once the bolt is out, slide the slave cylinder out. Little room to work with, so be patient. audi a4 slave cylinder

Next step is to remove all of the transmission to engine bolts. There are a total of 9 bolts and the diagram below will show their locations. This is looking from the rear of the transmission. audi a4 transmission bolt locations

9. Start by removing bolts 1, 2, and 3. Shot of the passenger side. audi a4 transmission

You can try and use a wrench to remove the 16mm bolts from the transmission but I find that there is an easier way. Connect two 2' extensions, a swivel and reach from behind the transmission. Play around with the position because there is stuff that will get in the way. Maybe easier if you disconnected the shifter rods first. If you need more room, remove the transmission mounts and tilt the trans+engine down. audi a4 how to reach trans bolt 1

Finally reach in with your hand and put the socket on. This is a shot of the passenger side. FYI, these bolts were on tight. There is some kind of hose in the way so space is limited, but it is possible to remove the top bolts using this method. audi a4 how to reach bolt 2

10. Continuing down the passenger side of the transmission. Remove 4 and 5. Fairly easy to get out. You may have to use a 16mm open ended wrench to reach #5. You do not have to remove the starter. audi a4 starter bolts

11. Drivers side of the transmission. Remove 8 and 9. Pretty straight forward. audi a4 transmission bolts

12. Remove 6 and 7. audi a4 bolts

Here are all of the bolts. Some of them are different. audi a4 bolts

# Raj 2014-04-20 01:42
Wow, nice writeup and great pictures
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# sheldon bell 2014-04-30 12:45
Did it the clutch made a rumbling noise when pressed in and no gears worked. What did I do wrong?
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# Gabe 2014-05-02 18:23
probably bent the shift rod or the thing he said not to bend and be careful with when putting the transmission back in. if so ive seen a post where a guy made that mistake so he just bent them back and it worked for him. just be sure to look into more before attemting
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# Artem Vestsorov 2014-05-02 21:59
What do you mean by, "no gears worked"? Were you able to put the shifter into the gears but the car did not move? You may have installed the clutch backwards. I've seen it happen. When you installed the clutch did you properly tighten down the pressure plate all the way and was the clutch disc secured tightly between the flywheel and the pressure plate? Without more details it could be anything - wrong parts, bent shift rod, backwards clutch, slave and/or master cylinder may need bleeding, etc...
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# Franck 2014-07-19 17:14
Thanks for the great write-up. It was very helpful on our '96 A4 Quattro. The only thing i did differently was how i installed the slave cylinder. I found another write-up that recommended to grease up the the rubber boot while avoiding the end of the piston. This allowed me to seat the slave cylinder by hand without using a bent screw driver. this was much easier. I had the slave cylinder in under 5 minutes.
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# mike the mechanic 2014-10-04 15:56
I cleaned the hole with wirebrush when gearbox was off, then lubricated slave cylinder with non-silicon "rubber care"lubricant, it took couple of minuts to install.
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# Clutch Kits 2014-11-24 10:50
thanks for sharing such an knowledgeable post. looking forward to see more good posts by you.
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# dikgang 2014-12-29 14:42
Clutch pedal is loose,does nt pump
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# David Schlossman 2020-04-30 21:32
Quoting dikgang:
Clutch pedal is loose,does nt pump

Just keep trying to bleed it the clutch will go to the floor for awhile then it will slowly start coming back up
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# toyo toe 2015-04-17 22:24
Excellent write up. Thank you for sharing.
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# anthony 2015-05-09 16:35
what side is the slave cylinder on? i need to replace it. drivers or passangers?
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# Jimmy 2015-05-11 11:10
Driver's side near the top of the transmission. You can see the 6mm Allen bolt after removing the front driver's side wheel.
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# vict0ar 2015-06-10 00:21
I recently did this job and this guide was quite helpful. On my early 99betwo, there were a few differences.

1. Needed to remove the precat o2 sensors. I couldnt squeeze the pipes between the frame and mount with the sensors on. Borrowed the 22mm tool from autozone and used a 2' extension from the top.

2. Was able to get the top transmission bolts with a 3/8 drive 6 point socket and an adaptor to 1/2 drive ratchet. Was not able to get them with the multiple long extension method. Too much stuff in the way made it hard to properly engage the socket and the long extensions gave too much play.

3. Bolt 6 requires 16mm offset wrench.

4. Wasnt able to get the 8mm hex on the shifter linkage. Was off by millimeters with my hex tool. Proly coulda hunted down a smaller tool. Instead i loosened it from the inside, moved the transmission back a tad, and was then able to access the bolt.
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# vict0ar 2015-06-10 00:25
Should say early 99 quattro
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# Cj 2015-06-25 20:38
Thanks i had a buddie put my clutch in, i gave him the link to this tutorial it worked great! also i didnt get a new flywheel i had it turned at a local machine shop and i have had no problems with it, just a tip if you want to save like 400 bucks on a new one... not saying it will work for all flywheels i had it checked with a depth gage and mine wasnt that bad so i had it turned id suggest doing your research on the tolerances of your specific flywheel before having it turned, i paid 60 bucks and it worked great, so this tip might save u 340 bucks or so, like i said do your research first! i dont want any one to screw up their car lol :) thanks again!!! Great tutorial
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# kevin 2015-07-12 03:15
great write up! i was wondering when/if i should change my flywheel, my car is about to hit 175 i think ive been getting the throw out bearing squeel sound so im gonna do a clutch kit job just wanted your input
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# broke audi owner 2015-09-08 03:20
Accelerater was kinda stuck initially. Pushed a bit harder and it completely loosened and engine revved up to red line. Now every time i start it the engine insta red lines to like 7k rpms. Wtf did i do wrong, help pls?
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# Jimmy 2015-09-08 12:04
I can't see how anything with this job would affect the accelerator. If yours is a 97-99.5 1.8T it's an AEB meaning a drive-by-cable. Maybe when you reconnected all those electrical connections in the engine bay something snagged the cable? You should see a physical cable connected to your accelerator pedal that is controlling throttle input into the engine... follow that to see what is making it stick.

Other A4's were drive-by-wire, meaning an electrical signal is sent from the accelerator pedal to the computer, which is then sent as electrical signals to the engine. If you have disconnected the battery then you need to run through a procedure to have the ECU relearn the accelerator position to throttle mappings. Just google for the procedure.

My assumption is you have an AEB engine since you mention the pedal was physically stuck.

Good luck!
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# still broke 2015-10-13 22:57
Thanks for the ideas jimmy.

I was able to figure it out the next day after some rest. When torching the o2 sensor, i think i let the flame get a bit out of control and it melted the plastic housing the accelerator cable slides in causing the cable to hang up. I simply cut away the damaged material and everything works properly.
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# Jt 2016-06-26 23:06
I have everything removed but my trans will NOT come off. Help please!
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# R.F.B. 2016-11-16 03:09
((((Clutch/Tran smission)))((( PROBLEM---MYSTERY))))))
I have just purchased a*** 2001 Audi/A6, 2.7-T, V-6, Twin Turbo, Quattro:***
Symptoms: Turn motor over and engage the clutch, put in gear, disengage clutch, and NOTHING happens...IN FACT...You can take the Gear Shifter, while engine is running, foot completely off clutch...And go "Shift Crazy"...litera lly... AGAIN...NOTHING HAPPENS....I am BAFFLED...Pleas e somebody HELP/SOS...any and all input greatly appreciated, MUCH!!!!!!! (OR) IF you could even point me in the right direction , Thank you.
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# AudiA4 2016-11-28 20:19
Same exact problem here, we bleed it, pulled our the slave cylinder and all that is fine, about the bring down tbe tranny to access the clutch plate and clutch release bearing. We'll see how that goes but should be easier thx to this article.... I hope...
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# Artoes 2016-11-28 18:45
I followed this and also took the flywheel and had it resurfaced, put everything back together. The clutch and trans. work fine but my engine now chokes up at 1800 rpm, could I have messed up the timing when I reinstalled the flywheel, it would only bolt up one way.
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# Natedawg1954 2016-12-24 16:46
This was awesome !!best tutorial I've read which will save me a ton of time replacing these parts.Your post is the only one that I found on the internet that showed direct pictures and what to do.All the others was just lousy no pictures,no explanation step by step,no videos at all of a manual transmission or replacing the rear main seal.GREAT LITERATURE keep it up.
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# Mark tankersley 2017-12-11 20:19
Have a 2003 A4 1.8 liter quatro. I'd appreciate the required tools and technique applicable to the replacement of the entire clutch assembly.
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# Mark tankersley 2017-12-11 20:23
Would appreciate description of a clutch replacement on my 2003 A4 quatro 1.8 liter vehicle. Thanks MUCH, mark tank.
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# Nicholas Hall 2019-08-04 16:33
There are actually 10 bolts on my 98 A4. Took the 9 out and there was one more at the bottom. Just a heads up. Just got mine out, great write up.
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# Robert Goldener 2020-03-11 01:04
This was and is the best write up on this "pain in ass" procedure. Especially when your DIY is done in your driveway with the car up on jack stands. I saw one video where the gent drops the sub-frame and slides the tranny out that way. Much easier but not doable on the ground. He of course had a full lift and transmission jack which would make a world of difference. The three bottom bolts are inaccessable due to the subframe and a real pain in the ass to remove or install. I saw many comments that were quite hilareous on these bolts. And I needed a good laugh at this point in the process. I am going to NOT put those little bastards in and hope for the best. (The German designer for this transmission needs to be beaten with a stick or worse or tasered into submission.)

One thing I suggest (that we failed to do when we pulled the transmission) is to label the transmission bolts as you remove them. Follow the guides that I found on this link:

Scroll down to see the diagram that shows bolt placement and length of the bolts. Label the bolts to match the numbers on the diagram and it will save time on installation.
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# Max 2020-08-07 23:00
how did you get the bottom bolts out without dropping the subframe
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# Peter 2020-10-23 11:22
Oh boy what a nightmare this job was. Did this on a 2001 A6, 2.4 V6, 5speed, quattro. Everything that could go wrong did. Now some of the things i did differently:
1)On the C5 the bottom bellhousing bolts are accessible with a standard 16mm wrench, however the upper driverside bolt hits one of the coolant lines, so the hose has to be brutally bent to get the bolt out. Didnt put that bolt back. F whoever designed that.
2)Couldnt get the RMS flange to seal. Twice. Ended up putting a light coat of RTV silicone on both sides of the gasket, that did the trick.
3)Was going to change the guide sleeve too, but the torx bolts holding it in are made out of butter, stripped them and just gave up. Use airtools if you can.
4)Flywheel was rebuilt(all new internals) and resurfaced by a shop that specializes in that.
5)For the clutch slave cylinder i used the bent screwdriver method described by OP but i also lubed up the part that slides into the bell housing.
As for the tools, i didnt have any of the special ones. For the flywheel i got the bolts all "tight" and then added about about a 100 degrees at which point it was "really f'ing tight". Couldnt be bothered to buy a torque wrench.
As for aligning the clutch disc, i just eyeballed it, worked perfectly fine.
Cars runs and drives much smoother, thanks for the writeup OP.
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# Supradin 2021-03-17 07:45
Can´t see any image. It´s my problema or webpage problem?
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