Help with electrical problems
Thread Starter
Newbie
Joined: Nov 2008
Posts: 8
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Audi allroad
Help with electrical problems
Trying to help a buddy fix his 2003 S500.
"Well, it seems to happen only every morning. It appears that the whole system shuts down and using my key to unlock it won’t work. So, I’ve been using the manual key to unlock the driver side door. Immediately after opening the door, the alarm will go off. So, it’s really annoying but even so the car will not start. The ignition is locked – the key will not turn to start up my car. Then after three minutes or so, the alarm will stop and the dash board just turns blank (kind of link the computer system is on a shutdown mode)…This morning though, I tried pressing all the buttons but nothing seems to work except the hazard button. After pressing that button, I was able to start the car! My car is really possessed!
There are no engine problems and it runs good…
"Well, it seems to happen only every morning. It appears that the whole system shuts down and using my key to unlock it won’t work. So, I’ve been using the manual key to unlock the driver side door. Immediately after opening the door, the alarm will go off. So, it’s really annoying but even so the car will not start. The ignition is locked – the key will not turn to start up my car. Then after three minutes or so, the alarm will stop and the dash board just turns blank (kind of link the computer system is on a shutdown mode)…This morning though, I tried pressing all the buttons but nothing seems to work except the hazard button. After pressing that button, I was able to start the car! My car is really possessed!
There are no engine problems and it runs good…
MBWorld Fanatic!
Joined: Apr 2003
Posts: 1,464
Likes: 9
From: SoCal OC
S, GL, Escalade ESV, my shoes
It's the EIS, about $500 to fix (part + labor). You can still reuse your old keys if the shop know what to do
Same thing happened to my car last year. It's not that uncommon for the problem to happen.
Same thing happened to my car last year. It's not that uncommon for the problem to happen.
Trying to help a buddy fix his 2003 S500.
"Well, it seems to happen only every morning. It appears that the whole system shuts down and using my key to unlock it won’t work. So, I’ve been using the manual key to unlock the driver side door. Immediately after opening the door, the alarm will go off. So, it’s really annoying but even so the car will not start. The ignition is locked – the key will not turn to start up my car. Then after three minutes or so, the alarm will stop and the dash board just turns blank (kind of link the computer system is on a shutdown mode)…This morning though, I tried pressing all the buttons but nothing seems to work except the hazard button. After pressing that button, I was able to start the car! My car is really possessed!
There are no engine problems and it runs good…
"Well, it seems to happen only every morning. It appears that the whole system shuts down and using my key to unlock it won’t work. So, I’ve been using the manual key to unlock the driver side door. Immediately after opening the door, the alarm will go off. So, it’s really annoying but even so the car will not start. The ignition is locked – the key will not turn to start up my car. Then after three minutes or so, the alarm will stop and the dash board just turns blank (kind of link the computer system is on a shutdown mode)…This morning though, I tried pressing all the buttons but nothing seems to work except the hazard button. After pressing that button, I was able to start the car! My car is really possessed!
There are no engine problems and it runs good…
Member
Joined: Jul 2008
Posts: 138
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From: new jersey
mercedez benz s430 4matic
i think it might be the key becausei drope it in the water and it was doing the same problem that u have. did u droped the key in the water if so if u have a second key try it and see what happens
Thread Starter
Newbie
Joined: Nov 2008
Posts: 8
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Audi allroad
The key is fine, changed the battery and still the same. Even tried a second key, but same problem.
Thread Starter
Newbie
Joined: Nov 2008
Posts: 8
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Audi allroad
Thanks, will look into that. If you scan the computer, will a fault code indicating the EIS come up?
