Extended Emissions Warranty
 

Hi

Does anyone here know if timing chain is covered under the Extended Emissions Warranty? my car has timing chain rattle during a cold start, I do not hear this rattle for rest of the day.

2014 GL350 with 59k miles.

this link shows the new Extended Emissions warranty covers the "Engine Timing Chain".

https://bluetecupdate.mbusa.com/cont...components.pdf

Yes.

And they will repair it under the new warranty when you bring it in for the AEM. (Assuming you are in the USA and covered by this settlement.)

Hmm - my interpretation is that the extended warranty begins after AEM update. Wouldn't the rattle indicate a pre-existing condition?

There was a document posted in the Diesel sub-forum that stated that Mercedes would repair any parts covered by the AEM during the AEM install.

So yes, "pre-exisiting" conditions would be covered.

https://mbworld.org/forums/diesel-fo...ml#post8329358

If you find the document could you post a link here? I have a 2015 350GL with slack in the timing chain - however no CEL.

On the FAQ page of the bluetecupdate I see:

(4) Owners/Lessees might complain about a Check Engine Light (“CEL”) being on prior to the Emission Modification being performed; will the Dealer perform that repair?

A Check Engine Light (“CEL”) can illuminate for a number of reasons. Authorized Mercedes-Benz Dealers will diagnose the vehicle and repair the vehicle at the Owner’s/Lessee’s discretion. Issues that arise in the vehicle prior to the Emission Modification (“EM”) being approved and ready for installation on the vehicle, including affected components which would be replaced as part of the EM, are the responsibility of the Owner/Lessee.

Once the EM is approved and ready for installation on an eligible vehicle, certain components will be installed to update the emission system in the vehicle. Should a vehicle exhibit a CEL prior to EM installation, an authorized Mercedes-Benz Dealer will advise the Owner/Lessee if additional repairs will be needed to ensure the proper functioning of the vehicle’s emission system. Depending on the faulty component, these repairs may be the responsibility of the Owner/Lessee.

So it is not clear that an 'existing' condition will be repaired.

Fine.

Then get the AEM installed and then complain about the timing chain afterward?

No - I'm just trying to find more definitive information either from the settlement documentation or from users experience before I determine how best to approach the dealership.
You said in your previous post: There was a document posted in the Diesel sub-forum that stated that Mercedes would repair any parts covered by the AEM during the AEM install.
That would be useful information - I searched and could not find such a document or reference - so I was hoping you might recall where you saw this and provide a link.
Thanks.

I would, pronto, get the AEM update. Worry about other details when they arise later.

Yes!