- Mercedes-Benz C-Class: Why does My Car Dies right when it Starts?
Guide to diagnose trouble and recommended solutions
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2008 C300 won't start
I am not happy to find this thread. Looks like I am in the club. 102,000 miles in the clock - I now wish I leased....
Stopped into a store for a quick stop on the way home yesterday and came out to nothing. There are some faint clicking sounds when I insert the key, but only dash lights. No radio, no steering unlock and no start.
Interesting, some posts here state that the radio does work with this failure. I wonder if the radio not working is a symptom of a EIS failure or Steering lock failure.
Got towed to the dealer yesterday - told me I needed a new key, but I see that's not even an issue....
RP
PS It was not obvious to me at the moment but
EIS = Electronic Ignition Switch
ESL = Electronic Steering Lock
ECU = Electronic Control Unit
It appears all three have to work together and agree the key is correct for an Okay to start scenario. It appears to me this failure we are discussing can be either the EIS or the ESL. In either case the repair bill seems to be comparable for either or....
Last edited by RickP330; Dec 8, 2013 at 10:48 AM.
After three days I finally hear back from the dealer. They tell me the following:
New ignition key
New EIS
New (Mechanical) Control Module (Have no idea what this is)
And the programming key
$2,500.00
Are they serious?!?!

EIS failures are not that common.
Well I only need an ESL with the Key. The service manager said well while we were at it we figured we would just change the EIS as well (along with that comes another $300 key). Yeah, you don't want to break down a week from now and need an EIS. I told them, no thanks. Just fix my car and I'll worry about the next break down later...
Total cost $1200
RP
PS I am really disappointed with the dealer. I did not expect that from them. A single point electronic failure costs $1200 to fix and they double down on it????
PSS and thanks to all on this board and thread I was able to educate myself about this problem and save myself $1,300... Thank you - the next round is on me ;-)
Last edited by RickP330; Dec 12, 2013 at 08:40 AM.

Pleased it's sorted.
Is that more commonly found to fail, or not so much either?
You're right about the thread probably making the issues seem worse, but it does grab my attention. Oddly, I'd rather know than not, despite the worry, so I still appreciate all the posts!
The Best of Mercedes & AMG

The ESL (electronic steering lock) is not a particularly common failure either.
RP
I tipped my advisor well despite the confusion when he issued me the loaner. He gave me a 10% discount on parts and labor. Replaced the ESL and ordered one key. Gave me a $50 coupon and I paid $1100 out the door.
The car works fine, but the tow truck driver scratched my front and rear bumper. These cars do not tow well.
I am happy with the service, but If I didn't know better I would have spent over $2500 for nothing - I guess buyer beware applies no matter what the business. I wish it weren't so....
RP
RP
So I spoke with the MB dealer's Service Manager and he contacted MBUSA and we are each paying a third of the ESL replacement cost. My portion was around $300 and I was very happy with the resolution. They ordered the part on Monday and I was able to pick up my car the next day.
Glad your were able to have some of the cost offset; some of us aren't so lucky.
Sounds like the problem that I am having. The electronic steering column is faulty and this is a common issue. Mercedes uses a cheaper part (not built to last) and therefore it is malfunctioning sooner than later which allows MB to extort exuberant amounts of $. ALso, it caused my horn and driver seat to stop working and (worked perfectly fine until the part malfunctioned)- now they want to charge me: $1,1100 for the elec steering column $550 for the horn and $250 for the seat! My warranty ran out a few months ago. good luck! I loved my MB, until NOW!!
RP
RP
Well I only need an ESL with the Key. The service manager said well while we were at it we figured we would just change the EIS as well (along with that comes another $300 key). Yeah, you don't want to break down a week from now and need an EIS. I told them, no thanks. Just fix my car and I'll worry about the next break down later...
Total cost $1200
RP
PS I am really disappointed with the dealer. I did not expect that from them. A single point electronic failure costs $1200 to fix and they double down on it????
PSS and thanks to all on this board and thread I was able to educate myself about this problem and save myself $1,300... Thank you - the next round is on me ;-)
Last edited by emonicaw74; Feb 8, 2014 at 09:36 AM.




