• The Forums are now open to new registrations, adverts are also being de-tuned.

C240 O2 sensor connector corrosion

seymansey

Active Member
Joined
Apr 6, 2007
Messages
735
Car
2006 CLK 320cdi Avantgarde
Morning,

Set off for a journey the other day to find the car would barely move forward, with massive misfiring! After clearing any existing codes and then running the car again, I came up with the following:

P0150 02 Sensor Circuit Malfunction (Bank 2 Sensor I)
P0155 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
P0304 Cylinder 4 Misfire Detected
P0305 Cylinder 5 Misfire Detected
P0306 Cylinder 6 Misfire Detected
P0300 Random/Multiple Cylinder Misfire Detected

When replacing the O2 sensor, I noticed that some of the connector block pins (blockside, near the wishbone) were corroded!

I fitted the plug anyway as time was running out, and after clearing the codes again and running the car (which was now noticable better, but not 100%) I'm left with:

P0155 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)

My question is - how on earth do i go about replacing the connector, as it's part of a loom that is firmly tucked away in the car innards? Does anyone know if it's possible to get a repair kit, or am I faced with possibly wiring up my own weatherproof connector?
 
There is no repair kit available for he engine harness side of the connector
Why not cut the plugs off and just connect the wires for the time being?
 

Users who are viewing this thread

Back
Top Bottom