Extended warranty on 2021 GLE 450
When I read the policy, they referred to comand system, belts ,alternators etc. No mention of coverage on the MBUX system or the 48 volt system with ISG generator etc, etc
Went back to the sales manager and he talked to inside Mercedes regional offices for a week and emails and no one wanted to commit what was covered except what was printed which is way out of date. He was shaking his head no one would say one way or another with the bobbing and weaving. He was frustrated and said to me, you have raised some valid issues here and we deserve an answer even from Germany. So, it's at a standstill now because Mercedes people don't know EXACTLY what is covered and not covered on the new models. The dealers are selling old extended warranties. So, buyer beware and don't let the dealer tell you it covers everything the 4 year covers because it doesn't. it's not in writing on the brochure. By Mercedes not wanted to say MBUX and the whole 48 volt system is covered is a little suspect. I know the batteries are not covered being the 48V AGM and the 48 V lithium Ion battery.
It's been 2 weeks and no further news to my questions or the dealer.
Toban




I just completed a 7000 mile winter return trip to AZ . I didn't have one issue with the car at all, in fact I haven't even been to the dealer for anything at all since I picked the car up. It has been flawless.
On the highway, it is a dream to drive, smooth, engine is like silk, quiet and just generally a pleasure to drive. I really like the Nav system. Way better than the old command system. Routes are corrected automatically if I change the route just by going a different way.
I have to say, from time to time I place a small trickle charger on the posts under the hood by my choice not suggested by the dealer. Just a little preventative maintenance on my part.
Toban
With the stellar reliability record of the one-sixty-lemon (167) why worry about warranty coverage?
Last edited by E55Greasemonkey; Apr 5, 2022 at 10:37 PM.
Boy, people are sure touchy or didn’t want me to report something like I did.
Next time I won’t bother.
Toban




Thanks for keeping us up to date.
But I still want a Factory Warranty on any new model car with all the new Tech onboard.
I'll be watching for @toban 's report on his research. I'd expect all batteries to be covered, but maybe not after 48/50,000 base warranty.
I know for sure the 12 V AGM and 48 V Lithium Ion batteries are NOT covered after 4 years. The EW does not cover the batteries.
As a note of interest, my general manager called me last week and told me I could get more for my car than what I paid for it! But, he also said you will have to wait along time and you will not be able to get the options you have currently on your car as they are not available etc etc. Said he had one car come in with a manual passenger seat!
Toban
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Thanks for reporting this. I'm considering the same purchase, so this was very helpful. Disappointing, but very helpful. Sad that they claim not to have an answer for you. I'm sure they have an answer, but they're too embarrassed to admit it... or they're hoping you'll either pay the price or quietly go away. RUDE!
The Best of Mercedes & AMG
Toban
Toban
Last edited by toban; Apr 6, 2022 at 07:37 PM.




Some things in the warranty are vague in the marketing pieces, and an F&I person may not know an Internally Lubricated Part from a Battery. That's understandable.
Talk to a person who is in the appropriate area.
You are assuming a lot here, think and hope are not answers.. Mercedes ought to be stating it very clear by name what's covered and not covered if they want to sell these policies and so far they are not addressing my questions which I don't think are unreasonable. So, I wonder why no one wants to put their name next to an explanation?
Toban
You are assuming a lot here, think and hope are not answers.. Mercedes ought to be stating it very clear by name what's covered and not covered if they want to sell these policies and so far they are not addressing my questions which I don't think are unreasonable. So, I wonder why no one wants to put their name next to an explanation?
Toban
I looked online at MBUSA, but I couldn’t find anything discussing the 48 V battery. However autobyte claims the hydroelectric batteries are covered for 96 months or 100,000 miles. I’m not sure this is correct, what does paperwork that came with your 450 say?
I also own a 2014 QX60 hybrid and it has a 96 month hundred thousand mile warranty on the hybrid electric components.
Bottom line, I thought an eight year hundred thousand mile warranty on hybrid electric components was mandatory in the US but I may be wrong. I wonder if Mercedes is claiming the 48 V system isn’t a hybrid electric vehicle?
https://www.autobytel.com/mercedes-b...2022/warranty/
Last edited by TexAg91; Apr 11, 2022 at 11:58 PM.
The EW after this does NOT cover these batteries.
The 350 model had a completely different electrical system to the 450. This is why by my choice, I charge both batteries from time to time.
The 350 only has an AGM battery. You can’t compare these models.
Toban
It will be interesting to see at least 5 separate user reports on this site after 5 years in service and/or 100k miles with the 48V system. Set watches to 2025. Until then caveat emptor in extremis.
The EW after this does NOT cover these batteries.
The 350 model had a completely different electrical system to the 450. This is why by my choice, I charge both batteries from time to time.
The 350 only has an AGM battery. You can’t compare these models.
Toban
I really prefer the manufacturer’s EW if I was to go that route. The lithium battery is worth about $2800.00.
Toban
Last edited by toban; Apr 12, 2022 at 02:42 PM.
I really prefer the manufacturer’s EW if I was to go that route. The lithium battery is worth about $2800.00.
Toban[/QUOTE
It might be worth checking with GEICO. I don’t use them, but I understand if you insure your vehicle with them, you can get an extended warranty for breakdowns with them for change ($100-$200 more per year. What I don’t know is do they make up that difference in their rates. Maybe someone on here uses them and has an opinion. My insurance company (USAA) doesn’t offer breakdown insurance, wish they did.




As for batteries, I am glad they are covering it for 4 years. Consumables are usually not covered and batteries can be damaged by depleting them completely. Other brands will not cover batteries if the battery is damaged by user error or oversight (like storing the car without trickle charger)
Toban




Toban
Have they shown you the actual contract?
Toban




I guess seeing A Canadian policy is the next step.
Toban




It's pretty clear about batteries, and similar -
TIRES: Tires are not covered by this Agreement.
GLASS: Glass is not covered by this Agreement.
PAINT AND OTHER APPEARANCE ITEMS: Paint and other appearance items are
not covered by this Agreement.
Other than that, it's good that it's an "exclusionary warranty," meaning that - unless it's excluded, it's covered. It's a lot better than an "Inclusionary Warranty," which means - if they don't specifically name it, it's not covered.
I think the question here, might be whether it's covered under part of the Emissions warranty, which I believe is where Hybrid batteries are covered.



