Hi, I have a 2014 CLS250 shooting brake. When I turn off the engine and remove the key the engine continues to run. The radio switches off but lights and engine remain on. Has anyone else had this issue or have any ideas what the fault can be. Thank you.
cls shooting brake engine won't switch off
- Thread starter BillCLS
- Start date
Never come across this fault,but I would look at the ignition barrel,have you tried both keys,will be interested when you get it sorted as to what it was. how did you stop the engine,I suppose disconnect the battery
MrGreedy
MB Enthusiast
If diesel, check your engine oil level immediately and don't drive it until you've checked the oil level. It could be start of engine run away possibly?
ALFAitalia
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Clearly you have never seen that happen....it does not work like that.
It is a Diesel.
Oil level is fine.
Hi thanks for your response. Yes I did suspect the SAM unit. I have taken the front out and it looks ok, can't see any sign of water ingress / damage.
Oleks1992
Active Member
You need xentry to start checking actual values etc to see what circuits are staying on
Thank you, yes that is my next move to try and isolate the circuit.
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I don't know much about this particular engine, but on a general note, Diesel engines are not switched off by cutting the electric current alone, but by switching off the fuel supply. There may be a relay somewhere that is responsible for shutting down the fuel pump, that is faulty - alternatively, as others said, this could be down to a faulty ignition switch.
Thank you for your response. It looks like it could be a faulty ignition switch.
