Oxygen sensors for 1999 M3, any options other than BMW?

[bluptgm3]

Highly possible they are fake as there is no NTK stamping on the sensor. Bosch boxes were of a different sensor

Likely not NTK/Bosch, hopefully these can be returned.

[dunkman23]

sup guys

I purchased the NTK from eBay from the seller listed here. However the plug I got colors are a little different (black/grey/white/ yellow) OEM colors are black/white/yellow/red. The seller said to match them up by color and the grey to red. However im still getting the p0135 code.

I have a new o2 heater relay installed too.

I just finished a head gasket change and everything is running flawlessly besides this code . Any ideas? Is my cable colors off?

[pbonsalb]

I did not watch this, but maybe it will be of help:

https://m.youtube.com/watch?v=8U8tqV3ZoP4

[ZEKTI]

Got the Hella ones in today from RockAuto. They are indeed made in spain, but not NTK stamp on the sensor itself. Pierburg ones are still available as well.

[Johal E32]

The Pierburg 02's threw a heater code on my brother's E36 M3. I swapped it back to a used Genuine BMW sensor I had around the garage.

[ZEKTI]

Well that is extremely disappointing for a Pierburg product. Do you happen to remember where they were made? Pierburgs website does not list country of origin.

[bluptgm3]

Wiki indicates a German company managed by an ‘umbrella’ Rheinmetall Automotive .

I’d have to look into where they might manufacture parts.

[jeremyuhh]

Got the Hella ones in today from RockAuto. They are indeed made in spain, but not NTK stamp on the sensor itself. Pierburg ones are still available as well.

looking at the hella o2 sensors from rock auto. how did those work out for you ?

[ZEKTI]

Cars still obd1, wont be until springtime. Walker ones seem to be NTK


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[bluptgm3]

Cars still obd1. Walker ones seem to be NTK

So NTK stamped into O2 sensor body?

I see that the Bosch sensor is embossed with ‘BOSCH’….

[ZEKTI]

That's what I had read for the walkers, I have not seen the original Bosch in a while.

ROCKAUTO has the NTKs in STOCK
https://www.rockauto.com/en/moreinfo...t=5132&jsn=750

[bluptgm3]

That's what I had read for the walkers, I have not seen the original Bosch in a while.

ROCKAUTO has the NTKs in STOCK
https://www.rockauto.com/en/moreinfo...t=5132&jsn=750

OBDII O2 sensors, right?

[pbonsalb]

I don’t see the NTK in stock at Rockauto. I see Walker, Hella and Vemo. Maybe an NTK will be in the box?

[ZEKTI]

I don’t see the NTK in stock at Rockauto. I see Walker, Hella and Vemo. Maybe an NTK will be in the box?

The NTK ones I linked sold out within hours sadly.

[ZEKTI]

Was able to snag 1 NTK sensor off RA for $75, can confirm it is legit. One can build a script to try and snag one as soon as they go in stock.

[Otto2019]

Walker "OEM based" from rockauto have NTK JAPAN stamped on the barrel.

[E36Robles]

Walker "OEM based" from rockauto have NTK JAPAN stamped on the barrel.

I don’t see a “oem based” walker sensor. Did you mean the economy section, walker OE replacement sensor is an NTK sensor? Just making sure before I snag one.