Z4M lambda sensor bosch replacement part number?

[Jack London]

Hey all

I got a P0056, HO2S Heater control circuit bank 2 sensor 2 error.

What I gather is that its the sensor over the cat and there are two sizes.
I just wanted to know if anyone knows the bosch equivalent part number or if theres a working catalogue where I can compare them?
From what I understand the sensor in question is OEM: 11781406622 BOSCH/L=935MM
AutoDoc lists the: BOSCH 0 258 005 139. As the suitable replacement.

Does anyone know exactly which is which? The BMW price is a bit over the top. Had the car only a couple of weeks so it sucks to already
be having to pay out hundreds but that's how it goes.


Also I gather than the exhaust needs to be dropped in order to replace it? Any advice or guides on the matter are appreciated, if it's too difficult to do on ramps then i'll probably have a garage do it.

Thanks all.

 

[mmm-five]

Are you asking for a UK car or a US car, as that part number doesn't look correct for a UK system.

• The US ones (at front of cat) are 1075mm (11781406621) and 935mm (11781406622)
• The UK ones (at front of cat) are 1390mm (11787837564) and 1340mm (11787837565)

UK-sourced Bosch ones should be less than £100 each vs the £300-400 dealers will charge for the same thing.

 

[Jack London]

Hey mmm, UK car. I got those numbers from RealOEM which is where the facebook group pointed me. I didn't see an options between US and EUR models. So that's my bad.
I'm guessing then that's BOSCH 0258005343. Which seems to be out of stock everywhere

 

[mmm-five]

Can help with info, but not sourcing.

 

[PDJ]

I'm guessing then that's BOSCH 0258005343. Which seems to be out of stock everywhere

Yes I had the last one in the UK last year

I have one second hand one which maybe ok as I only got one and the plugs are a different fitting on each and around 50mm cable length.

I am going to try fitting a new Bosch one joined to the old cable and see if it works

Bosch technical say that all post cat sensors are the same just the plug and cable

 

[Jack London]

I'm guessing then that's BOSCH 0258005343. Which seems to be out of stock everywhere

Yes I had the last one in the UK last year

I have one second hand one which maybe ok as I only got one and the plugs are a different fitting on each and around 50mm cable length.

I am going to try fitting a new Bosch one joined to the old cable and see if it works

Bosch technical say that all post cat sensors are the same just the plug and cable

I just wanted to check. Was that the same part number as the one you ordered? I'm going to keep on the hunt for one but want to make sure it is the correct part. Thanks

 

[Mister T]

Offside:
OEM: 11787837564
BOSCH: 0 258 005 342

Nearside:
OEM: 11787837565
BOSCH: 0 258 005 343

Out of stock everywhere

 

[PDJ]

Collected a Bosch universal O2 sensor today but the sensor end looks different so it is going back the cable length is long enough but unless Bosch tech help can confirm it is suitable it is going back
I have the last UK sold sensor fitted to my car so have a good one to Compare the live data once fitted to make sure it is not giving faults readings back to the engine ECU

 

[Mike6]

If you look at my post a few weeks ago (help oxygen sensor replacement) there is advice on replacing bank 2 sensor 2 but I haven't been able to source a replacement as all out of stock. When I code out the fault the ignition light stays out for a while so not an urgent job although mot due next week.
I was going to post a how to replace if my theory of taking off a piece of the wheel arch shield works to gain access but if you get there before me would you mind confirming

 

[BumpyZ4]

It looks like they were discontinued by Bosch and replaced with a "universal" sensor.

 

[Mike6]

This is getting silly. Bank 2 after cat sensor on my car keeps throwing a light which I code out for a few days before it comes on again. My car is the old e85 2.5i with bosche sensor number 0258005310 which is different from yours but is out of stock everywhere and I have my mot on Tuesday.
If light comes on during test I am stuffed which is unfair but I guess that's the way it goes these days

 

[PDJ]

If light comes on during test I am stuffed which is unfair but I guess that's the way it goes these days

Code the fault as you are doing and have a re test you have to get lucky or find a tester that is not too bothered (I know a couple)

 

[Mike6]

Luckily engine light stayed off at mot so it's a pass all bar an advisory on anti roll bar drop links which are an easy job. Examiner said don't mess around with those universal lambda sensors where you join the cables as it isn't always successful. His assistance tried their suppliers whilst mot in progress but couldn't source one. Might have to be BMW but when I did a quick check they are around £270 as against Bosch £70 which is probably original equipment anyway

 

[PDJ]

No Bosch ones in the Uk

So back to BMW or carefully join a universal one to the old OEM plug

 

[Mister T]

Interesting vid about using the universal Bosch ones that come with the crimps for joining the wires

https://youtu.be/bmWjoudIOCk

 

[Jack London]

This is getting silly. Bank 2 after cat sensor on my car keeps throwing a light which I code out for a few days before it comes on again. My car is the old e85 2.5i with bosche sensor number 0258005310 which is different from yours but is out of stock everywhere and I have my mot on Tuesday.
If light comes on during test I am stuffed which is unfair but I guess that's the way it goes these days

According to my MOT tester the check engine light is only a fail on cars from 2009 onward as I spoke to him about it and he said even if it came on it wouldn't be a failure as it was 07. I haven't checked the book myself but that's what he told me.

 

[Mister T]

This is getting silly. Bank 2 after cat sensor on my car keeps throwing a light which I code out for a few days before it comes on again. My car is the old e85 2.5i with bosche sensor number 0258005310 which is different from yours but is out of stock everywhere and I have my mot on Tuesday.
If light comes on during test I am stuffed which is unfair but I guess that's the way it goes these days

According to my MOT tester the check engine light is only a fail on cars from 2009 onward as I spoke to him about it and he said even if it came on it wouldn't be a failure as it was 07. I haven't checked the book myself but that's what he told me.

Not true unfortunately, it's July 1st 2003 for cars:

8.2.1.2. Gaseous emissions

Engine malfunction indicator lamp (engine management light or ‘EML’)
Turn on the ignition and check that the engine malfunction indicator lamp (MIL) illuminates and then goes off. On some vehicles it will be necessary to start the engine before the MIL goes off.

You need to inspect MIL fitted to:

petrol vehicles including hybrids with 4 or more wheels, not more than 8 passenger seats in addition to the driver’s seat and first used on or after 1 July 2003

 

[Adam D]

I bought bosch sensors from opie oils - was a straight plug and play swap.

This was the two before the cat on a z4m.

 

[Mike6]

Pre cat sensors are available everywhere. It the post cat ones with longer leads that are unavailable in UK. Autodoc suggests it has a limited supply but I have read that people are being saddled with very high import taxes before items are delivered.