Z4M Coupè lambda sensor(oxigen sensor) problem

andre82 · 11-17-2010, 02:20 PM

Hi Guys,

After two rounds of 20 minutes on the track

the lambda sensor are broken,
my car have 20.000KM 4 year(10/2006)

engine and ecu is stock, have only xpipe and final muffler and bmc air panel filter, fuel 98 octane whitout any other addictive.

what could be causing the problem?

There are oxygen sensors aftemarket ? bmw stock part is not good!

thansk Andrea

sorry for my english (i'm from Italy)

F360C · 11-17-2010, 04:54 PM

I have lots and lots of track days on my car and I have not had my sensors fail. The BMW part is good... maybe there was something else that caused them to fail

O-cha · 11-17-2010, 06:47 PM

They fail, it happens.

gnx · 12-02-2010, 02:15 PM

I have had both of mine fail during the second year of ownership (since new that is).

onelove · 12-03-2010, 09:23 PM

It's a wear part, 20k km is a bit early to be replacing them, but if it was all track time or you used any sort of leaded fuel (race fuel) during that time, they'll last little to no time. Check Bosch for more affordable replacements, albeit still not cheap.

Cube · 12-04-2010, 05:13 PM

Quote:

Originally Posted by andre82

Hi Guys,

After two rounds of 20 minutes on the track

the lambda sensor are broken,
my car have 20.000KM 4 year(10/2006)

engine and ecu is stock, have only xpipe and final muffler and bmc air panel filter, fuel 98 octane whitout any other addictive.

what could be causing the problem?

There are oxygen sensors aftemarket ? bmw stock part is not good!

thansk Andrea

sorry for my english (i'm from Italy)

Sell the car

11-17-2010, 02:20 PM	#1
andre82 Enlisted Member 2 Rep 40 Posts Drives: z4m coupè Join Date: Jul 2010 Location: italy iTrader: (0)	Z4M Coupè lambda sensor(oxigen sensor) problem Hi Guys, After two rounds of 20 minutes on the track the lambda sensor are broken, my car have 20.000KM 4 year(10/2006) engine and ecu is stock, have only xpipe and final muffler and bmc air panel filter, fuel 98 octane whitout any other addictive. what could be causing the problem? There are oxygen sensors aftemarket ? bmw stock part is not good! thansk Andrea sorry for my english (i'm from Italy) __________________ www.azmodel.net
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11-17-2010, 04:54 PM	#2
F360C Major 366 Rep 1,373 Posts Drives: E86 S54 Join Date: Apr 2006 Location: Hoboken, NJ iTrader: (2)	I have lots and lots of track days on my car and I have not had my sensors fail. The BMW part is good... maybe there was something else that caused them to fail __________________ 07 Z4 M Coupe AW/IR
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11-17-2010, 06:47 PM	#3
O-cha Brigadier General 218 Rep 4,726 Posts Drives: Mcoupe Join Date: Oct 2007 Location: In front of you iTrader: (2)	They fail, it happens. __________________
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12-02-2010, 02:15 PM	#4
gnx Όλα ρόδες 760 Rep 560 Posts Drives: BMW Join Date: May 2008 Location: Athens, Greece iTrader: (0) Garage List 2004 e46 M3 Convert ... [7.50] 2023 M4 CSL [8.17] 2007 E86 M Coupe [0.00] 2008 e93 M3 [0.00] 2019 M2 Competition [9.67] 2017 f48 X1 xdrive 25d [6.00]	I have had both of mine fail during the second year of ownership (since new that is).
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12-03-2010, 09:23 PM	#5
onelove Track Head 24 Rep 503 Posts Drives: 07 Z4M Join Date: Jan 2008 Location: Orlando,FL iTrader: (0)	It's a wear part, 20k km is a bit early to be replacing them, but if it was all track time or you used any sort of leaded fuel (race fuel) during that time, they'll last little to no time. Check Bosch for more affordable replacements, albeit still not cheap.
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