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2012 c300 jump start damage.

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Old Nov 7, 2015 | 01:05 PM
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2012 c300 jump start damage.

I jump started my car with another vehicle now the cooling fan runs on high and will not stop and the climate controls won't function (no lights). I'm pretty sure I smoked the ECU. Will the factory warranty cover this? Will the dealership know how the vehicle got damaged?
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Old Nov 7, 2015 | 01:24 PM
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Probably. Better to come clean so they don't spend ur money in diagnostic time.
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Old Nov 7, 2015 | 05:52 PM
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Welcome. If car is under Warranty I would bring it in. If they ask tell them the truth but I do not think they will ask.
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Old Nov 7, 2015 | 08:46 PM
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Welcome to MBWorld and sorry to hear about your jump related issue.

As mentioned, you're better off being honest about the cause and working with your dealer to see if they can cover under warranty. Might be something as simple as a blown fuse though so check that out.
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Old Nov 9, 2015 | 07:09 PM
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Welcome to MBWorld! Hope you get your issue resolved.
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Old Nov 11, 2015 | 04:49 PM
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Come clean?

Originally Posted by Shifter
Probably. Better to come clean so they don't spend ur money in diagnostic time.
Hell no. Why would I do that? If they don't cover it I wouldn't pay for diagnostic time. I'd take it to an Indy. That would be the Ammo they'd love so they could avoid covering it. The fan controller toasted they replaced it under warranty. It's stupid that it would get damaged by a jumpstart. From now I'll call the Benz number they could deal with it.
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Old Nov 11, 2015 | 04:51 PM
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Yup.

Originally Posted by dbldpr
Welcome. If car is under Warranty I would bring it in. If they ask tell them the truth but I do not think they will ask.
They ain't ask. I ain't tell them. They replaced the fan controller under warranty. Must've been defective, it shouldn't fry with a simple jump.
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Old Nov 11, 2015 | 04:54 PM
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Glad it worked out
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Old Nov 11, 2015 | 05:00 PM
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Honest?

Originally Posted by AZN Optics
Welcome to MBWorld and sorry to hear about your jump related issue.

As mentioned, you're better off being honest about the cause and working with your dealer to see if they can cover under warranty. Might be something as simple as a blown fuse though so check that out.
I don't understand why I would risk having my warranty voided. They would probably say I jumped it wrong and not cover. The cars defective it shouldn't cost me 2000$ just because the battery died.
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Old Nov 11, 2015 | 07:12 PM
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Originally Posted by Jay078080
Hell no. Why would I do that? If they don't cover it I wouldn't pay for diagnostic time. I'd take it to an Indy. That would be the Ammo they'd love so they could avoid covering it. The fan controller toasted they replaced it under warranty. It's stupid that it would get damaged by a jumpstart. From now I'll call the Benz number they could deal with it.
And this is what's wrong with the world today folks. Tell the truth , hell no. Why would I do that. You probably jumped it backwards but obviously won't admit that because you are a liar.
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Old Nov 11, 2015 | 08:33 PM
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Nope.

Originally Posted by Shifter
And this is what's wrong with the world today folks. Tell the truth , hell no. Why would I do that. You probably jumped it backwards but obviously won't admit that because you are a liar.
You sound like a little *****!
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Old Nov 11, 2015 | 09:25 PM
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The owner's manual shows exactly how to properly jump start the battery; Positive on the connection point under the sliding plastic cover and Ground on the metal stand-off. There shouldn't be any issue with the dealer although attitudes vary between dealers. Fortunately, my local dealer has been excellent with their customer service as they've stood by their product (my car), given that I didn't even purchase it from them. You've gotta love factory warranties!

IMHO, it all depends on your approach to the situation. What's that old saying? "You get more with honey..." I hope all goes well.

Last edited by pfarah77; Nov 11, 2015 at 09:29 PM.
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Old Nov 12, 2015 | 12:02 AM
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Originally Posted by Jay078080
You sound like a little *****!
What does that make you sound like? Pathetic.

You must be one of those that can barely afford to lease the car , than can't afford brakes or tires when they are due. Just to drive a "Benz"

Last edited by Shifter; Nov 12, 2015 at 12:04 AM.
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Old Nov 12, 2015 | 08:25 PM
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moved to W204 forum...
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Old Nov 12, 2015 | 09:10 PM
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I'm pretty sure theres lot's of posts about NEVER JUMP starting a Benz but **** happens i know best thing to do is call and be honest like others said but I'm sure they won't ask or if they do come clean it should be covered either way.

if your not comfortable call another dealer that you don't go to and ask the question don't give any info and they will have no clue who you are.
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Old Nov 12, 2015 | 11:45 PM
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Jay.

The mistake you made was to make your problem known on a public forum. Best keep these matters "under the hood"

Glad it was resolved & a warning to all about jump starting.

The way I overcame an accidently drained battery was to remove the ign. key, connect up leads from another car then charge both batteries with a charger overnight. Disconnect leads & start as normal...no problems encountered,.
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Old Nov 13, 2015 | 11:00 AM
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Originally Posted by Shifter
And this is what's wrong with the world today folks. Tell the truth , hell no. Why would I do that. You probably jumped it backwards but obviously won't admit that because you are a liar.
+1
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