Nox Sensor & Cip Upgrade

[Simon00]

Hi There

I am new to the club. I just got told by my garage that my NOX sensor is faulty on my 1 series. Its only done 14,000 miles and is 3.5 years old. Its going to cost a fortune and wondering if i should try and challenge BMW to pay for it? Engineer has told me its very very unusual to get this fault on such a low mileage. Any ideas? Also do i really need to replace it? will it cause problems if i don't do it?

Also was told i needed to update CIP which again is going to cot a fortune. Interested to know if i need to do this, assume only BMW can do this? Just not sure what it will do.

Thanks for your help guys

[IanIOM]

CIP updates i cannot help with,

Knock senor? well it is abit odd for it to pack up at such a young age, must admit from experiance they either work or they dont, engine works fine or runs like a bag of cr** if at all,

does the car run ok?

[Simon00]

Thanks for your reply. Well i have not noticed any issues with the engine, and no warning lights. The garage said the error came up when they were doing the main service...

[IanIOM]

Sometimes engines will throw up fault codes,which once cleared will not come back, the old X5 had it drummer into its brain that it had a missfire on number 8, and that the coil on 3/4 wasnt working correctly................it was correct as it was a 3.0 Diesel.

If the Dealer has cleared the code, and the car is running fine i wouldnt worry to much. All these modern leccys on cars are a wounderful assistance however it will never replace common sense.

The dealer wouldnt be doing his job unless he mention it to you