pokerwon

She is got a 1999 Ml320. 2 days ago, she stop for some milk and the car won't start no more.
At first I thought it was the battery problem, So i put in a new one(man, It was quite some work), and the engine just cranked and won't start. sometimes it sounds like it is going to start, but it just won't keep running.
Sometimes it will not crank at all.
The ML tow to a independant MB tech. He said it is the key problem. The immobilizer in the key just "quit-by-itself" And since we only have one key, we have to order another key from Mercedes it waill take a week to get it.
The MB tech told me that the fault code is " 1570 "
It means something like there's no communication between key and ECU.
The strange part is that she did not drop the key on the ground or in the water.
Anyone have any idea?

AsianML

Maybe something in the key broke?

pokerwon

No, it is fine. Nothing break loose . Even the door lock remote is still good.

sosh

Also could be the fuel pump or the crankshaft position sensor, both minor but not cheap.

pokerwon

The MB tech check the fuel pump is good. The tech said it could not be the crank sensor, since the computer is releasing the code " 1570"

Darkmann

Here's what amazes me sometimes: Isn't roadside maintenance lifetime with these trucks? I believe it is. Too bad you had to buy a battery. Please keep in mind that in most (if not all) cases of breakdown, all you have to do is call roadside assistance. It's "free" with active SOS subscription (I don't know what they called it for 99's) or if you use your phone. They most likely would've diagnosed the problem, but it would be up too you to follow their recommendation.

pokerwon

Thanks for your information. I didn't even think that ML has life-time roadside service. My fault. However, my MB tech has already ordered the key. I am still waiting for it. I'll post my update again. Thanks

pokerwon

New key is here. The ML starts right up. Then I try the old key. It still does the same thing. (keep cranking but won't start) How amazing this key is!

But I have to program the remote for the door lock. Anyone has any idea?

Thank you for all your information

sosh

Thats spelled out in the manual in detail. Its easy

pokerwon

Do you mean the manual book shows the instruction of how to programming the remote door lock?
I don't find it.

MBtech1

If you have a new key, you have to program the key with a Star Diagnosis computer that we have in the shop. If you are just replacing the batteries in an old remote you can program it without the computer. If its an old key, all you have to do is turn the key to the "on" position, then take it out and hold the lock button while pressing unlock 5 times. However, in your case you said its a new key so this will not work without having an SDS hooked up.

StapleGun

Thanks for sharing...pop's has an ML320 good info to know