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graham savage
Date registered: Dec 1899
Location:
Vehicle(s):
| Key Fob & Fog light problem HELP!
SO... I've read the lot and searched the rest.
I have a 2000 ML 270 (Pre facelift - two tone) down in sunny south africa BUT amoungst other problems that have been sorted out recently (185000km) like the new turbo, diesel pump, injector rail or something - not cheap!
I have my dealer stumped and they dunno what it wrong - all of a sudden my key fob stops locking and unlocking doors - nada and then I noticed that at that very same time the front fog lights stopped working - I took it down to the dealer, told me they dunno and will have to book it in but they are fully booked for 4 weeks... so I was locking the car with the switch on the cetre consol and quickly closing the drivers door - obviously that has destroyed the door lock actuator, which I pulled out today and it's toasty - new one is ordered (thier workshop is still fully booked) so I went poking around to try figure out the probo...
Oh and I have tried to recode or re sync the keys a few times - ignition to position 2, off, out hold lock yada yada not getting anywhere...
Anyways, I started with the fog lights - the switch works, tested with a multimeter and gave it a clean up - the rear fog works but not the fronts, so I swapped out the relays - no go - I find power on the pins, if I bridge the two big pins the light come on (with teh headlights on and ignition on) if I earth the smaller pin with the relay in the relay switches and the lights come on.... so I belive there is an issue betwwen the switch and the relay - any ideas?
With the door story - I see that all the door actuators work barring the passenger rear - it's sort of iffy but I concluded this by noticing that evry door I open illuminates the interior lights - is that a good test? :-) I say the rear passeger door is iffy as I ave noticed when I drive the car over 20km/h it doesn't always lock and makes the other dorrs machinegun a bit...
So My questions, Are these two items linked (Fog lights and key fob)? how can I test which actuators need replacing and is a faulty actuator responsible for the key fob/alarm to stop working? Oh and another thing on the key fobber - I can still start and drive as normal - just no lock/alarm and unlock 
HEEEEELLLLLLLLPPPPPPPP MY dealer is useless and expensive! |
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cmitch
Expert
Date registered: Apr 2006
Location: Ala-Tenn
Vehicle(s): 2002 ML320, 2005 S430 4Matic, 2010 F150 Super Crew
Posts: 3412
| RE: Key Fob & Fog light problem HELP!
AAM? (All Activity Module).
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graham savage
Date registered: Dec 1899
Location:
Vehicle(s):
| RE: Key Fob & Fog light problem HELP!
Where would I find that? Can it be repaired/replaced by me? |
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cmitch
Expert
Date registered: Apr 2006
Location: Ala-Tenn
Vehicle(s): 2002 ML320, 2005 S430 4Matic, 2010 F150 Super Crew
Posts: 3412
| RE: Key Fob & Fog light problem HELP!
First of all, you need to make sure. Unfortunately, if that is the problem, it's an issue only the dealer can address. I believe you are lucky to have a 2000 model, since I think that was the first year of the AAMII. The AAM was separated from the DAS (drive authorization system).
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Marcelc
Date registered: Dec 1899
Location:
Vehicle(s):
| RE: Key Fob & Fog light problem HELP!
I would look for another dealer, the nearest one to me is a real cowboy, very expensive, swaps out parts uneccesarily, does bad workmanship and cheats both customers and the Mercedes warranty system.
I found another dealer somewhat further away who are a long established firm with very low turnover of staff, they give me 40% discount on labour and 20% on parts as my car is more than 6 years old and they do a perfect job every time.
I am even happy to go there and spend the money as I know there is going to be no stress and arguments involved.
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graham savage
Date registered: Dec 1899
Location:
Vehicle(s):
| Re: Key Fob & Fog light problem HELP!
Well it is at another dealership today, they gonna check it out and let me know. I am told that the car does have a AAM2 and DAS system separate :-) R4000 for a new AAM2 (roughly US$600 hehehehehe)
Another question I have is I took teh beast off roading last weekend - very impressed again with the capabilities of this "softroader" as they call it here but I managed to get a puncture and had to put the biscuit spare on and drive 60 odd km to the nearest town - HOW does the car know that I had the spare on and not allow me to exceed 90km/h??? |
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cmitch
Expert
Date registered: Apr 2006
Location: Ala-Tenn
Vehicle(s): 2002 ML320, 2005 S430 4Matic, 2010 F150 Super Crew
Posts: 3412
| Re: Key Fob & Fog light problem HELP!
graham savage - 9/11/2008 12:38 AM Well it is at another dealership today, they gonna check it out and let me know. I am told that the car does have a AAM2 and DAS system separate :-) R4000 for a new AAM2 (roughly US$600 hehehehehe) Another question I have is I took teh beast off roading last weekend - very impressed again with the capabilities of this "softroader" as they call it here but I managed to get a puncture and had to put the biscuit spare on and drive 60 odd km to the nearest town - HOW does the car know that I had the spare on and not allow me to exceed 90km/h??? The ML's have wheel speed sensors that help the traction system function. THAT is how it knows.
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