Relief Valve - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)

m3dragon · 03-28-2012, 03:32 PM

I know this was a issue on the Z4M coupe.

http://www.burgertuning.com/bmscdv.html

Anyone change this on the 135 or 1M?

robertm · 03-28-2012, 04:34 PM

A few people have. I've never had issue with it on my car though. In fact one of the smoothest shifting cars I've ever owned.

If you don't feel like you need it then I wouldn't mess with it.

Dackelone · 03-28-2012, 04:36 PM

Quote:

Originally Posted by m3dragon

I know this was a issue on the Z4M coupe.

http://www.burgertuning.com/bmscdv.html

Anyone change this on the 135 or 1M?

Search for "CDV delete DIY"... you will find LOTS of info.

CDV = clutch delay valve

///M1 · 03-28-2012, 11:52 PM

I did mine a few weeks back, worthwhile and cheap (in fact free) mod, an easy DIY.

MDORPHN · 03-29-2012, 08:09 AM

Quote:

Originally Posted by ///M1

I did mine a few weeks back, worthwhile and cheap (in fact free) mod, an easy DIY.

+1.

First mod I made on my 1M.

Neil

m3dragon · 03-29-2012, 09:04 AM

Sorry for the obvious dumb question, does it really change the shifting that much?

///M1 · 03-29-2012, 11:22 AM

Quote:

Originally Posted by m3dragon

Sorry for the obvious dumb question, does it really change the shifting that much?

Here you go:

http://www.zeckhausen.com/cdv.htm

m3dragon · 03-29-2012, 12:16 PM

Ok that was a good write up. Looks like time to change mine out.

03-28-2012, 03:32 PM	#1
m3dragon Major Drives: CSL M3 / 1M AW Join Date: Dec 2007 Location: Sacramento Posts: 1,030 iTrader: (0)	Relief Valve I know this was a issue on the Z4M coupe. http://www.burgertuning.com/bmscdv.html Anyone change this on the 135 or 1M?
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03-28-2012, 11:52 PM	#4
///M1 Brigadier General Drives: Many Join Date: Feb 2009 Location: 212/305 Posts: 3,077 iTrader: (0) Garage List 2011 BMW 1///M [0.00] 2008 Audi RS4 [0.00] 2000 BMW E39 M5 (sold) [0.00] 2008 BMW 135i (sold) [0.00]	I did mine a few weeks back, worthwhile and cheap (in fact free) mod, an easy DIY. __________________ *2011 BMW E82 1///M: AW, ZPP, ZCV, HK, Sirius, Apps; Akra CF+Valve control, MadDad mids, K&N, Forge FMIC, P3gauge, EuroTails, Tint, CF Mirrors+Spoiler+Roof Wrap, 10mm H&Rs, IND grills+gills, xCDV, LUX AE 2008 Audi B7 RS 4*: Sprint Blue, Exclusive Euro Recaro Interior, Premium+Titanium Package, EPL Tune, Stasis Ohlins MS coilovers, Milltek valved exhaust+DownPipes, Stoptech SS lines, Tint, ADR V1, Lidatek, Lamin-X, Rotiform SNA 19x10" wheels, 275/30/19 PSSs, Euro flat-bottom steering wheel, JHM SSK

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03-28-2012, 04:34 PM	#2
robertm Captain Drives: BSM 1M Join Date: Oct 2007 Location: dfw Posts: 730 iTrader: (0)	A few people have. I've never had issue with it on my car though. In fact one of the smoothest shifting cars I've ever owned. If you don't feel like you need it then I wouldn't mess with it.

03-29-2012, 09:04 AM	#6
m3dragon Major Drives: CSL M3 / 1M AW Join Date: Dec 2007 Location: Sacramento Posts: 1,030 iTrader: (0)	Sorry for the obvious dumb question, does it really change the shifting that much?

03-29-2012, 12:16 PM	#8
m3dragon Major Drives: CSL M3 / 1M AW Join Date: Dec 2007 Location: Sacramento Posts: 1,030 iTrader: (0)	Ok that was a good write up. Looks like time to change mine out.