Was looking to purchase a bosch sensor for my e39 as one of them has failed but cannot narrow down what I need
The error says high voltage before kat bank 1
So best price I found with free delivery is micks garage at 98 euro which is good price
Does anyone know exactly which part I need ?

Also the temp needle slowly moves over to the red and back to centre When sitting in traffic
There is coolant and no leak so what could be the possible culprit?
Any advice appreciated thanks

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