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710A DVs standard fit on RS4??
Posted: Mon Apr 17, 2006 9:11 am
by CliveH
I'm being careful not to "hijack" other threads - inspected a car for a forum member yesterday,
http://www.rs246.com/index.php?name=PNp ... ic&t=53265 , and discovered it had 710A DVs fitted - were the 710Ns not fitted as standard to the RS4s...?
RE: 710A DVs standard fit on RS4??
Posted: Mon Apr 17, 2006 9:21 am
by maxxximus
ASAIK 2.7 s4/rs4 fitted with the A's but N's fitted to 1.8T TT from factory.
Simple and cheap upgrade to give you peace of mind.
RE: 710A DVs standard fit on RS4??
Posted: Mon Apr 17, 2006 9:57 am
by DavidT
Yep, only the TT had them.
RE: 710A DVs standard fit on RS4??
Posted: Mon Apr 17, 2006 10:19 am
by CliveH
And the 225 S3...?
Posted: Tue Apr 18, 2006 3:29 pm
by kiwi_mtm
My rs4 has 710A's, and this has always puzzled me why Audi didn't use the "N".
Posted: Wed Apr 19, 2006 8:52 am
by clived
kiwi_mtm wrote:My rs4 has 710A's, and this has always puzzled me why Audi didn't use the "N".
When did the 'N' revision come out?
Posted: Wed Apr 19, 2006 9:13 am
by Nige_RS4
710A was std fit on the RS4, the 710N version (rather than revision) came out for the 225BHP 1.8T engine and although the diaphragm is not as thick as the 710A, it is actually less prone to tearing.
Posted: Mon May 15, 2006 2:13 pm
by ConvictS4
Just swapped out two 710A's off 2001 B5 RS4 for two new 710N's. Neither 710A would hold vacuum from the nipple - pulled both apart for some fun and each had about 10-15m split in rubber diaphragm
Posted: Mon May 15, 2006 4:48 pm
by LSWP
each had about 10-15m split in rubber diaphragm
now thats a big split!!
Posted: Mon May 15, 2006 5:32 pm
by s4woody
my s4 had 710c's..any idea what they are from??
Posted: Tue May 16, 2006 2:25 am
by ConvictS4
LSWP wrote:
each had about 10-15m split in rubber diaphragm
now thats a big split!!
Especially in imperial measurements !
mm's of course !
PS My 2000 S4 had 710C's before being replaced with N's
Posted: Tue May 16, 2006 8:50 am
by CliveH
Never heard of 710Cs - anyone know which car these are from??
Posted: Tue May 16, 2006 9:10 am
by ConvictS4
It seems the 710C was used on some S4's in lieu of the 710A. To my layman eyes the A and C DV's look very similar (I now have duds of both in the store room somewhere). Audiworld has some commentary on it including the following (no responsibility accepted if all this is wrong!)
"... the TT uses a 710N valve which has a stiffer spring with a rubber diaphram. the 710C has the same spring with 3.5mm of travel up and down and a brass piston dome.
the 710N has a 7mm of travel with a rubber piston. ... "