How to replace temperature sensor for Mercedes-Benz E-Class with the OM651 engine.
Broken temperature sensor 1 B19/11 (upstream of turbocharger) A 000 905 64 04 gave check engine light at cluster and also took down the power while driving the car so is kinda important to change this sensor when it fails. Close to this sensor at catalytic converter is also a lambda sensor A 007 542 16 18 and another temperature sensor A 000 905 35 05, also not showed in video is one more temperature sensor under the catalytic converter A 000 905 68 04.
Further down is also the common NOX sensor front A 000 905 36 03 rear A 000 905 34 03 access for them is under the car one in the front and one in the rear. The mass air flow sensor seen at (1:20) also quite common fault, check engine light and car losing lot of power, had that issue before and then I just removed it and clean the inside and reset fault code and car rocking as normal. Is not needed to remove filter housing for that but is more easy to access the screws for it.
Using the Elite Benz fault code reader from launch to troubleshot this issue and find the faulty sensor.
This sensor gave following fault codes
- P054615
Temperature sensor 1 "Exhaust system" (cylinder bank 1)
has a short circuit to positive. There is a short circuit to
positive or an open circuit.
- P208027
Temperature sensor 1 "Exhaust system" (cylinder bank 1)
has a malfunction. The signal change rate is above the
permissible limit value.
Fault code reader sponsored from Launch to this video.
Launch Elite Benz full system scanner
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