Urgent Help - Mid way through changing CPS

[mr. shr]

Guys,
I'm at my Mum's changing the crankshaft position sensor.
Got the old one out, but it's got oil on the end of it!!

Is that right? Thought they were meant to be dry?

Should I put the new one in?

 

[BlackC55]

A little oil is quite normal. Just put the new on in, it will be fine.

 

[mr. shr]

Just the response I wanted,
Cheers Olly.

 

[grober]

The CPS employs a magnetic principle of operation so would be unaffected by slight oil contamination as has been said.

 

[mr. shr]

New CPS is in.
No malfunctions but engine light is on.
Does it need to learn the new sensor or something?

 

[grober]

Was the battery disconnected at all? Might be a fault was flagged when you disconnected the old sensor. May require the fault to be reset with Star or a fault code reader. Don't know what model your mother's car is?

 

[mr. shr]

It's a W211 52 petrol v6.
Took car to run a few errands and after a couple of starts the light went out.

Did a few more runs and still all ok so looks like job done.

Thanks for the help guys.