SLK won't start

[Johnmcn]

I have a 2003 230SLK and it won't start. The key works, all the warning lights come on but stay on and the engine cranks but won't fire. The warning lights should go off after a few seconds but they don't. The only thing I've done is turn the car around as its on a slight slope. I don't think this makes a difference but it might.I plugged in computer but no fault codes. All i got was some live data but no codes. I checked all the fuses except the ones by the light switch which I'll check today

 

[Trickythemerc]

How much fuel is in the tank ?

 

[Johnmcn]

3/4 tank full

 

[Deleted member 149005]

Loose battery earth?

Does the car have an alarm or immobiliser?

 

[pmcgsmurf]

When you say, "plugged in computer", can you clarify ?

 

[BlackC55]

Can you hear the fuel pump prime? A buzz from the rear when the ignition is turned on?

 

[Dodipops]

In your live data can you see rpm? It might be a faulty crank sensor.

 

[Jobsworth]

I think I’d have a look at the K40 module first, especially if you can’t hear the fuel pump priming

 

[DSM10000]

Loose battery earth?

Does the car have an alarm or immobiliser?

Would it crank with a lose earth connection?

 

[Deleted member 149005]

Would it crank with a lose earth connection?

Good point - probably not