houston_tian

last week the engine suddenly shut down when I drove down from MT Washington to the ground, at the begging the wheel is very hot, and then the engine can not restart. The car was towed to the dealer for about a week, and they do not know the reason and how to fix it. Does anybody have suggestions? The car is GLS 450 2018. thanks a lot.

chassis

The dealer doesn't know how to fix it. What exactly have they told you?

houston_tian

They said there are 10more comunication errors, they do not know why. Maybe caused by the overheat of the wheels maybe cause by others. When I down the mountain, the wheels were out of normal hot, can not touch. But I just drive for a few minutes that is not normal.

chassis

OK. What is the next step?

houston_tian

I already towed to another dealer

Paxfobiscum

You can now put that big sticker on the rear windshield:

This car drove up Mt. Washington"

.

houston_tian

I should add, " This car drove up Mt. Washington but engine dead."

chassis

What is the prognosis?

John CC

I'm pretty sure the sticker says "This car climbed Mt Washington".

The trick is to do it in less than 6 minutes... https://mt-washington.com/climb-to-the-clouds

houston_tian

the dealer just tell me that the engine is seized.

John CC

I would ask them "How did that happen?"

Paxfobiscum

The engine is seized because you drove it up and down Mount Washington? Holy sh*&%!
We drove our old 1982 Volvo 240 wagon up that mountain in 1999 and the only thing we needed to change afterwards were the brake pads.

.

houston_tian

yes, that is the MB, they have taken the engine down, and going to disassemble it。

houston_tian

hi, My car was repaired after about 2 and a half months. I was told that they changed a new engine. But from the invoice, it seems that they put the old engine together?

John CC

If you look at the bottom of the second page it states that they started to fix the engine, then found a bad main bearing so ended up installing a remanufactured engine instead.

This still all begs the question of why the engine seized in the first place. Spun rod bearings are usually related to extreme over speed or lubrication failure. It seems to me the engine electronics should have prevented an overspeed by forcing an upshift, which leaves a lubrication failure...

John CC

Anyhow, I'm glad you were able to get it fixed, and you didn't have to pay.

I guess, not knowing what happened, I'll refrain from driving ours up there.

houston_tian

thank you John for your kindly help! I do not know the reason but I would pay more attention next time down the hill. It would be a lot money if I need pay by myself.

Happy new year to You and everybody here.

ssbreddy

At the end of the bill it says that the found a blown internal fuse in the starter pre fuse box. Probably that was the whole issue rather than all other parts?

I have seen others having issue and when they replaced the 30G relay or the F32 prefuse box, all the issues were resolved and the car started. Just thinking if the fuse was the reason.

John CC

The fuse wouldn't have blown coming down the mountain, nor would that have caused the engine to stall. More likely he had an oil related engine failure and then blew the fuse trying to start a seized engine.