BMW 316i (E46) 1999 - 2000 MOT failed on Exhaust Emissions Test

[kiran8055]

Hello,

BMW 316i (E46) 1999 - 2000 MOT failed on Exhaust Emissions Test, Here are the Test results:

Fast Idle Test

CO = 0.00 % vol Pass - 0.30
HC = 8 ppm Pass - 200
Lambda = 1.332 Fail 0.970 - 1.030


Second Idle Test

CO = 0.00 % vol Pass - 0.30
HC = 5 ppm Pass - 200
Lambda = 1.146 Fail 0.970 - 1.030

Any suggestion or advice would be helpful.

Thanks in Advance.

[MarcoZandrini]

Sure looks like the oxygen sensor is suspect. Lambda is another name for the O2 sensors.

[kiran8055]

Thanks, MarcoZandrini,

Do you know how much does 02 sensor cost and can I replace the 02 sensor myself?

Will INPA software detect this kind of problems if I run diagnostic?

My mate suggesting to use Fuel Injector Cleaners + Shell V power petrol, so wondering will this help to sort out Exhaust emission problem?


Kind regards

[BimmerBreaker]

can I replace the 02 sensor myself?

If you have to ask, probably not.

[MarcoZandrini]

Thanks, MarcoZandrini, Do you know how much does 02 sensor cost and can I replace the 02 sensor myself? Will INPA software detect this kind of problems if I run diagnostic? My mate suggesting to use Fuel Injector Cleaners + Shell V power petrol, so wondering will this help to sort out Exhaust emission problem? Kind regards

O2 sensors cost anywhere from $25 to $200 in the US. You're in England so I haven't any idea how much it'll cost. Replacing an O2 sensor can be a real hassle depending upon the stubbornness of the sensor. Find a garage that worx on bimmers/beemers.

[JM35]

The O2 sensor can be areal pan to get out of the car, but they are typically in a fairly easy location to find and remove. If the part is being stubborn and isn't coming off, I recommend removing that part of the exhaust and removing out from underneath the car, as I knocked my car off the stands one time trying to muscle it off and nearly killed myself literally.

As for price, I believe a Bosch one for BMW is typically $110-150 or so, depending on where you get it from.