lots of problems :((((
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S500L 03, Avalanche 03 and Porsche Cayenne S 04
Both front fuseboxes got wet nothing else. Everything inside works just fine. I do get esp malfunction message. Not cranking and fan going full speed could be caused by getting water in the ecu from what i read, could the sam or anything else cause this as well?
Out Of Control!!
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2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
Rechecked all fuses and all are good. I did not check the relays i remember now.
I then got under the car to check for the starter and i can't feel any click, nothing. So i guess no power and no need to take out starter. Taking out the starter seems pretty difficult by the way. Does that mean ECU is faulty? Cable seems fine although i can barely see it.
So i took out right front sam, the one next to the ecu. There are a few marks of water no rust though. I will order a new sam anyway. Sam is plug and play i have read. Can someone confirm this because i had also read that ecu was plug and play. I think i will wait for the sam to arrive and if that does not fix it i'll send the ecu to Miami for repairs.
I then got under the car to check for the starter and i can't feel any click, nothing. So i guess no power and no need to take out starter. Taking out the starter seems pretty difficult by the way. Does that mean ECU is faulty? Cable seems fine although i can barely see it.
So i took out right front sam, the one next to the ecu. There are a few marks of water no rust though. I will order a new sam anyway. Sam is plug and play i have read. Can someone confirm this because i had also read that ecu was plug and play. I think i will wait for the sam to arrive and if that does not fix it i'll send the ecu to Miami for repairs.
What is all this costing you in total?
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S500L 03, Avalanche 03 and Porsche Cayenne S 04
A lot of money. Which i would not have had to spend if i had put back the covers.
Ok so far i ordered 2 sams
Transmission, , esp and suspension computer i have not bought yet, costs a lot more and is difficult to find. I will ship the ECU this week to the repair guys.
Ok so far i ordered 2 sams
Transmission, , esp and suspension computer i have not bought yet, costs a lot more and is difficult to find. I will ship the ECU this week to the repair guys.
Last edited by rik881; Dec 10, 2014 at 01:39 AM.
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Thread Starter
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S500L 03, Avalanche 03 and Porsche Cayenne S 04
Thread Starter
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Joined: Oct 2014
Posts: 128
Likes: 1
S500L 03, Avalanche 03 and Porsche Cayenne S 04
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From: Ball Ground, GA (N of Atlanta)
2003 S500 2007 GL450
If you are willing to go to the trouble, you can try cleaning each of the units. Washing with pure alcohol will sometimes get things working again. If you can't get alcohol any other way, 180-proof gin, vodka, etc. will work.
A friend and I cleaned the transmission module in his S430, and that go the transmission shifting properly again. Almost a year ago, and so far, so good. We used brake cleaner in a spray can, but we were cleaning ATF, with no water. Alcohol will do better on the water...
A friend and I cleaned the transmission module in his S430, and that go the transmission shifting properly again. Almost a year ago, and so far, so good. We used brake cleaner in a spray can, but we were cleaning ATF, with no water. Alcohol will do better on the water...
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S500L 03, Avalanche 03 and Porsche Cayenne S 04
The TCU for one did not get water in it. It got tranny flood. I never thought a car with less then 20k miles would give me so much trouble. I read in other topics that it might be saved. If not i'll have to send it to the ecu repair guy as well because the tcu as the ecu needs to be programmed by dealer it seems.
Thread Starter
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Joined: Oct 2014
Posts: 128
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S500L 03, Avalanche 03 and Porsche Cayenne S 04
If you are willing to go to the trouble, you can try cleaning each of the units. Washing with pure alcohol will sometimes get things working again. If you can't get alcohol any other way, 180-proof gin, vodka, etc. will work.
A friend and I cleaned the transmission module in his S430, and that go the transmission shifting properly again. Almost a year ago, and so far, so good. We used brake cleaner in a spray can, but we were cleaning ATF, with no water. Alcohol will do better on the water...
A friend and I cleaned the transmission module in his S430, and that go the transmission shifting properly again. Almost a year ago, and so far, so good. We used brake cleaner in a spray can, but we were cleaning ATF, with no water. Alcohol will do better on the water...
The transmission shifted fine when i drove the car last time 2 months ago. I'm going to clean it using contact cleaner, i used contact cleaner for the ecu as well but that did not fix my no crank, fan full speed problem. I have to wait for the sams to arrive to try anything now since i broke one open and it does not seem to close ever again. I'll ship the ecu to the repair guy in Miami this week, it will take about a month to get it back. I'll try alcohol for the suspension and esp computer if i can't find them cheap on ebay by the time the ecu arrives.
my Benz
Out Of Control!!
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2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
I have been and will continue to follow this thread for weeks!! I wish you so much luck and I want a victorious outcome for you!
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S500L 03, Avalanche 03 and Porsche Cayenne S 04
I opened the tcu to clean it and the condensor has come loose. I have a tcu from a w211 with other part number but it is exactly the same. All chips and numbers on the circuitboard seem to match. There are some rusty spots on the board.
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From: Ball Ground, GA (N of Atlanta)
2003 S500 2007 GL450
The loose component appears to be fairly common. The polarity is critical. If you can tell from the solder or the impressions on the board, great. If not, do some research on line - there are some photos showing this. Sorry that I don't have a url or reference for you. Just be certain to get the polarity correct!
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From: Ball Ground, GA (N of Atlanta)
2003 S500 2007 GL450
Yep, that's the rascal! Thanks for posting the photo - this might really help the next person with the problem.
Skylaw - It would be great if this photo could make it to the encyclopedia.
Skylaw - It would be great if this photo could make it to the encyclopedia.
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S500L 03, Avalanche 03 and Porsche Cayenne S 04
Well that is the condensor that came loose you are talking about i think. I'm going to have to resolder it.
Last edited by rik881; Dec 11, 2014 at 09:17 PM.
