Orange engine management light has come on.....Please help

[Reggie-rock]

Hi All, Today driving with very low fuel in my 2006 CLK350 the orange management light came on and has stayed on since.
Done a quick check on the levels etc but all seems OK.
Just wondered if anyone else had this happen when very low on petrol or is just a coincidence.
Is there anything simple I should check before I take it to a garage and I suppose you will all advise my planned 250 mile journey is off for tomorrow although the car is running perfect.
Please help

 

[brucemillar]

EML can trigger for a multitude of reasons, but not usually fuel level!!

Your trip maybe fine if you have no other symptoms, as it may be a transient error. For piece of mind you need to get it on a STAR to have the codes read and possibly cleared down. A local Indy sould do that while you wait for about £30ish.

 

[BTB 500]

Don't want to worry you unnecessarily but your car has the M272 engine which has some known issues that can cause the EML to come on. You might want to check your engine number against the ranges in post #2 of this thread:

http://www.mbclub.co.uk/forums/engine/137229-complete-m272-engine-thread.html

But you'll have to get the fault codes read anyway, as mentioned.

 

[Ash Bhp]

What brucemillar said.

 

[E240estate]

Get the 'torque' app on your phone, and a Bluetooth OBDII scanner and read the codes.

 

[Reggie-rock]

I took my CLK to my Indy in Northampton (Autobarn Ltd) at very short notice, plugged it in and it seems the thermostat is sticking and running a little cool, so they switched off the EML and said it's OK to drive.
The car still averaged 35mpg over the 244 miles I did today which I thought was very good on a slightly cooler running engine.
The car is booked in to have a new thermostat fitted.
Thanks for all your help who replied.