Z4M Coupè lambda sensor(oxigen sensor) problem

andre82 · 11-17-2010, 03:20 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, 05:54 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, 07:47 PM

They fail, it happens.

gnx · 12-02-2010, 03:15 PM

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

onelove · 12-03-2010, 10:23 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, 06:13 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, 03:20 PM	#1
andre82 Enlisted Member Drives: z4m coupè Join Date: Jul 2010 Location: italy Posts: 40 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, 05:54 PM	#2
F360C Captain Drives: M Shoe Join Date: Apr 2006 Location: Jersey Posts: 883 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

11-17-2010, 07:47 PM	#3
O-cha Brigadier General Drives: Mcoupe Join Date: Oct 2007 Location: In front of you Posts: 4,704 iTrader: (2)	They fail, it happens. __________________

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12-02-2010, 03:15 PM	#4
gnx Private First Class Drives: Z4 M Coupe Join Date: May 2008 Location: Athens, Greece Posts: 105 iTrader: (0)	I have had both of mine fail during the second year of ownership (since new that is).

12-03-2010, 10:23 PM	#5
onelove Track Head Drives: 07 Z4M Join Date: Jan 2008 Location: Orlando,FL Posts: 501 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.