Pre cat lambda replacement costs

Z

zomby

Member
 Birmingham, UK
So my emissions light came on a few days ago, and I've managed to extract the following from Inpa (via Google Translate):

$ Error Location: 11323
$ FehlerOrtText: 2C3B Lambda probe in front of catalyst, not plugged in
B8F1121C57012C3BA110241402283C03022397303C060516A630000000000000AB
Error: 1 (1) Nr: 11323 2C3B Lambda probe in front of catalyst, not infected Frequency: 2
Error type: 1 (72) Probe not connected
Readines flag: (16) Test conditions met
Error status: (33) Error currently not available, but already saved
MIL status: (49) Error would cause a warning light to come on
P-code: P2414 Lambda probe (bank 1, in front of catalytic converter) - not connected F_LZ: 40
Environmental text / entry at 122928 km (2.) 122904 km (1.)
Time since takeoff 128.00 s 51.20 s
Voltage lambda probe behind catalyst bank 1 0.43 V 0.68 V
Voltage lambda probe in front of catalyst bank 1 3.24 V 2.95 V
Ceramic temperature Lambda probe in front of catalyst bank 1 768.00 ° C 768.00 ° C
___________________________________________________________


The car's been driving fine, apart from the throttle occasionally being slightly jerky at sub 2k revs. I've been quoted by NCB Autokraft around 120 for the sensor and around 100 for the labour, excluding VAT so I'm looking at around £260 in total. Does that seem reasonable?
 
Be worth checking it's not come loose.

I replaced one last year. The sensor was around £95, but I fitted myself.

The pre exhaust ones are not hard to do if you can wield a spanner.
 
Might have a tinker tonight but failing that, is this the right part for the job?

https://www.eurocarparts.com/ecp/c/BMW_Z4M+Coupe_3.2_2006/p/car-parts/exhausts/car-body-parts-and-car-exhaust/lambda-sensor/?710111860&1&d7a0c0f00c2f1b23e91d7c2a5a7f7bca11d7ce94&000210
 
You'll need a spark plug socket to fit, if the bracket is in the way it's a bit fiddly but certainly not worth paying anyone to do.
 
I think if I had a bit more time on my hands I'd definitely give it a go myself but for now I'll get the indy to do it, especially as I don't have the aforementioned spark plug socket.

I ended up buying this https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F232521223101

which is already a good £80 saving on the part and so the outlay is already less than what I'd been preparing myself for. Been quite stressed about it so I'll be happy just to have it sorted. Thanks for the advice
 
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