100Q avant c3 1989 Brake Master Cylinder

Arch_80 · 21-02-17, 05:05 PM

Hell everyone,

I have recently bought a rough old 100 to restore and have come undone with trying to replace or repair the ATE brake master cylinder.

I looked up the numbers and none match what was on the car. See pics attached

Please help as I'm at the stage of giving up.

Hanuman · 21-02-17, 05:40 PM

I'd say you need to be forthcoming with a little more info-

http://audi.7zap.com/en/rdw/audi+100...6/611-53000/#1
This lists 6 options of cylinder, of which 5 also show as LHD.

Arch_80 · 23-02-17, 03:45 PM

Hi many thanks for attachment, however, the six listed master cylinders do not match.

Hanuman · 23-02-17, 03:48 PM

So, what Is the part number of the cylinder that you have removed?

Arch_80 · 23-02-17, 03:59 PM

Unfortunately I can't work that out. It doesn't seem to be written on it or my likely it's beyond me haha.
What I can read is:
Top front: 25ZV
Top back: 03
Underside: 111/12 & 06 87 & (symbol) 17 - see above attached photo.
Back: (pressed/stamped) 08186G

Hanuman · 23-02-17, 04:14 PM

I'd have a chat with Peter Reeve/quattrocorner, if the local dealership(if there is one) can't help.

By its format, I'd guess the number 08186G might be ATE's number.

John. · 23-02-17, 05:06 PM

Quote:

Originally Posted by Hanuman

I'd say you need to be forthcoming with a little more info-

http://audi.7zap.com/en/rdw/audi+100...6/611-53000/#1
This lists 6 options of cylinder, of which 5 also show as LHD.

From that list then it can only be 893 611 021 yes?

This any use.... https://www.amazon.co.uk/s/ref=nb_sb...Ck%3A893611021 ......clicking on the picture reveals that it also fits a multitude of other Audis.

mikes2 · 23-02-17, 09:47 PM

But that would make it a 23.8 bore which will be wrong.

I'd expect a 25.4mm master cylinder on this car. The 25ZV would appear to back this up. 0687 is the month of manufacture

Have you tried contacting ATE in Germany. They're usually very helpful

Arch_80 · 27-02-17, 11:53 AM

Thanks chaps. All good thoughts and help there. It is much appreciated and welcomed.

I have had word back from ATE who are all too happy to help, which is nice!

The suggested solution is to replace my original ATE 03.2125-2711.3 (discontinued part - not even on classic catalog) with ATE 03.2125-3210.3 (or for short ATE 010212 or for VAG 441 611 021 with or without the A after con't tell the difference other than car model).

The problem is that the FL measurement of my old ATE 03.2125-2711.3 is 14mm (ish/approx) and the newer with ATE 03.2125-3210.3 has an FL of 36mm.

So at the bottom of the email with no explanation are further part numbers. I assume this is part of the adaption kit. The following parts number and names are:

Zwishenstuck (aka intersection/intermediate piece) VAG 443 611 105
Flansch (aka flange/compensating piece) VAG 853 612 129.

Can we assume that this is now resolved?

mikes2 · 27-02-17, 01:10 PM

Yes - I think you use a spacer to take up the difference.

21-02-17, 05:40 PM	#2
Hanuman Trickster Classic Audi Club Member Join Date: May 2009 Location: Heckling from the cheap seats, Phnom Penh, KoW Posts: 7,028	I'd say you need to be forthcoming with a little more info- http://audi.7zap.com/en/rdw/audi+100...6/611-53000/#1 This lists 6 options of cylinder, of which 5 also show as LHD. __________________ I wish they would keep the damned Chinese away now that I can go home, so that I can enjoy Fish amok and a draught Angkor

23-02-17, 03:48 PM	#4
Hanuman Trickster Classic Audi Club Member Join Date: May 2009 Location: Heckling from the cheap seats, Phnom Penh, KoW Posts: 7,028	So, what Is the part number of the cylinder that you have removed? __________________ I wish they would keep the damned Chinese away now that I can go home, so that I can enjoy Fish amok and a draught Angkor

23-02-17, 04:14 PM	#6
Hanuman Trickster Classic Audi Club Member Join Date: May 2009 Location: Heckling from the cheap seats, Phnom Penh, KoW Posts: 7,028	I'd have a chat with Peter Reeve/quattrocorner, if the local dealership(if there is one) can't help. By its format, I'd *guess* the number 08186G might be ATE's number. __________________ I wish they would keep the damned Chinese away now that I can go home, so that I can enjoy Fish amok and a draught Angkor

23-02-17, 09:47 PM	#8
mikes2 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Polmont Posts: 2,617	But that would make it a 23.8 bore which will be wrong. I'd expect a 25.4mm master cylinder on this car. The 25ZV would appear to back this up. 0687 is the month of manufacture Have you tried contacting ATE in Germany. They're usually very helpful __________________ 1991 90 quattro 20v sport 1991 90 quattro

27-02-17, 01:10 PM	#10
mikes2 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Polmont Posts: 2,617	Yes - I think you use a spacer to take up the difference. __________________ 1991 90 quattro 20v sport 1991 90 quattro

23-02-17, 03:45 PM	#3
Arch_80 Grown up member Join Date: Jan 2012 Location: Devon, not enough audi's here Posts: 35	Hi many thanks for attachment, however, the six listed master cylinders do not match.

23-02-17, 03:59 PM	#5
Arch_80 Grown up member Join Date: Jan 2012 Location: Devon, not enough audi's here Posts: 35	Unfortunately I can't work that out. It doesn't seem to be written on it or my likely it's beyond me haha. What I can read is: Top front: 25ZV Top back: 03 Underside: 111/12 & 06 87 & (symbol) 17 - see above attached photo. Back: (pressed/stamped) 08186G

27-02-17, 11:53 AM	#9
Arch_80 Grown up member Join Date: Jan 2012 Location: Devon, not enough audi's here Posts: 35	Thanks chaps. All good thoughts and help there. It is much appreciated and welcomed. I have had word back from ATE who are all too happy to help, which is nice! The suggested solution is to replace my original ATE 03.2125-2711.3 (discontinued part - not even on classic catalog) with ATE 03.2125-3210.3 (or for short ATE 010212 or for VAG 441 611 021 with or without the A after con't tell the difference other than car model). The problem is that the FL measurement of my old ATE 03.2125-2711.3 is 14mm (ish/approx) and the newer with ATE 03.2125-3210.3 has an FL of 36mm. So at the bottom of the email with no explanation are further part numbers. I assume this is part of the adaption kit. The following parts number and names are: Zwishenstuck (aka intersection/intermediate piece) VAG 443 611 105 Flansch (aka flange/compensating piece) VAG 853 612 129. Can we assume that this is now resolved?