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Need some desperete help. Vw related

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SasaniFab

Proven Member
2,433
782
Dec 1, 2013
Mexico, Connecticut
So im at a loss guys. My gfs 2012 jetta has rear drums and the brake cylinder started to leak. So after replacing them I went to bleed the brakes and the pistons in the cylinders popped out. No matter what i do they continue to pop out. Has anyone ever experienced this issue? New drums and shoes. These drums do not have an adjustment device. Just a rod u push up.?????
 
Oh oh oh it’s vw/audi YAH I’m gonna tell u definitely why

Thoose cars are sophisticated vin spilts and stuff like that compare the parts you replaced CAREFULLY make sure there EXACTLY the same if it’s not that u prolly needed an Audi tool of some sort srs usually there cheap on eBay
 
I know it’s to late for this but always do drums one side at a time

With VW/audi always get oem parts from each LOL especially brakes unneed to call the dealer and check for vin spilts
 
I know it’s to late for this but always do drums one side at a time

With VW/audi always get oem parts from each LOL especially brakes unneed to call the dealer and check for vin spilts
The parts Are exactly the same. Its not the parts, something isnt adjusted correctly. I replaced the drums and wheel cylinder but not the shoes, i replaced those last year. Either way this shouldnt happen when the shoe gets low. The piston shouldnt be able to eject from the cylinder.
 
Stupid question but you are bleeding it with the drums on ? I've never had a wheel cylinder do that. In regards to vw and Audi being so sophisticated that they reengineered a wheel cylinder I'm sorry but I'm sure that's not the case.

If your doing it with the drums on and it's doing this inspect the old ones and make sure there is no adapter or push pad that needed to be swapped to the new one.
 
Is a spring missing that holds the shoes together and tite to the cylinder? I popped one out on a Toyota last month and just didnt have a hold down spring on. After install, I always knock em back and forth and center them. Should be tight on the 2 wheel cylinder posts that contact the shoe.
 
Is a spring missing that holds the shoes together and tite to the cylinder? I popped one out on a Toyota last month and just didnt have a hold down spring on. After install, I always knock em back and forth and center them. Should be tight on the 2 wheel cylinder posts that contact the shoe.
The car is an hour away from my f***ing shop so im doing the best with what i got. Im gunna attack it first thing. Ill keep u guys posted
 
Lol you Brian have you ever tried to compesss rear calipers with a vice on an Audi?

Also like i said parts are vin specific which means you could have a rotor that looks identical on 2 similar passats for example and truly different dimensions
 
Pull the old piston and compare it to the new piston in the cylinder, one might be shorter for some reason, 2014 shouldnt be a split year for the Jetta. I deal with this all the time with my Audi/VW herd. I actually consider the rear calipers on the Audi/VW to be single use items LOL, if your in need or rear pads you might as well order the calipers (on rear disk models) because they very very rarely ever work right again if you spin them back in.
 
I got it boys, just finished in the dark in the back of my apartment. I give alot of props to the guys working without a garage. What i didnt notice in the rush i was in was the brake shoe that had become unseated at the bottom pivot point. When the old masters started to leak while she was driving the pedal pressure forced all the brake fluid out and allowed for the shoe to come unseated.
 
Great man!!! Thats keeping the nose to the grindstone. Happy you were the accomplished mechanic that you are so its all good again. :thumb:
 
Glad to hear you resolved the issue.

About compressing an Audi caliper in the vice no ii never have but I assume the issue you were having was because it may of had an internal parking brake ratchet that needed wound back. But what would I know I've only been wrenching for a living for 18yrs now.
Lol you Brian have you ever tried to compesss rear calipers with a vice on an Audi?

Also like i said parts are vin specific which means you could have a rotor that looks identical on 2 similar passats for example and truly different dimensions
 
I can tell you one thing. I HATE working on VWs! Did i mention that when my gf first informed me I went down to look at the fluid level in the master cylinder and while attempting to open the hood the cable snapped :banghead:. Thankfully I was able to get my hood open, unfortunately i had to rip off the front grill to get access to 3 bolts that hold the latch in place.
 
I put a motor in a toureg a few years ago you had to disassemble basically the whole vehicle. Then after we sold it a few months after that the alternator failed guess what step one is, remove engine what a joke.

Plus triple square fasteners what a joke luckily there was one guy in the shop with a set.
 
I can tell you one thing. I HATE working on VWs! Did i mention that when my gf first informed me I went down to look at the fluid level in the master cylinder and while attempting to open the hood the cable snapped :banghead:. Thankfully I was able to get my hood open, unfortunately i had to rip off the front grill to get access to 3 bolts that hold the latch in place.
Had the hood cable break thing happen plus the plastic hood release interior handle snap thing.
 
On some Audi’s and VWs you have to tell the computer your changing the brakes LOL. Saw it done at my friends shop. I had a big WTF over my head.
OOHHH yeah VW/Audi LOVES special tools and drumming up dealership business after you give up and give in, only company I've seen design their own type of fasteners so that you have to buy their tools or go to a dealership, I think they make as much from tools/service work and parts as they do car sales.
 
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