SL/R230: Another central locking issue...
Thread Starter
Newbie
Joined: Jan 2019
Posts: 14
Likes: 2
SL500
Another central locking issue...
My 2004 SL500 *intermittently* won’t lock/unlock using the proximity key. I never really use the fob, just walk up to the doors. They used to automatically unlock. Now they only unlock sometimes, and rarely if the car has been sitting for a while. I have to use the key and then it only unlocks the driver’s side.
If the car is running, I can lock and unlock flawlessly from the dashboard button. If not running, nothing from the dash.
Usually if I’ve just finished driving I can get out of the car and use the button on the door handle to lock it, but sometimes I have to use the key.
Pretty inconsistent. My current planned fix is to just use the key, but i’d like to get it sorted if it’s not crazy expensive.
thanks!
If the car is running, I can lock and unlock flawlessly from the dashboard button. If not running, nothing from the dash.
Usually if I’ve just finished driving I can get out of the car and use the button on the door handle to lock it, but sometimes I have to use the key.
Pretty inconsistent. My current planned fix is to just use the key, but i’d like to get it sorted if it’s not crazy expensive.
thanks!
Senior Member
Joined: Nov 2019
Posts: 347
Likes: 86
2005 SL65 AMG
To make sure I understand what you’re saying....
While sitting inside the car with both doors closed, the lock/unlock buttons on the dash work fine while the engine is running and do nothing while the engine is off?
Sit in the car with the engine off and doors closed and press lock/unlock on the key fob. What happens?
While sitting inside the car with both doors closed, the lock/unlock buttons on the dash work fine while the engine is running and do nothing while the engine is off?
Sit in the car with the engine off and doors closed and press lock/unlock on the key fob. What happens?
Thread Starter
Newbie
Joined: Jan 2019
Posts: 14
Likes: 2
SL500
To make sure I understand what you’re saying....
While sitting inside the car with both doors closed, the lock/unlock buttons on the dash work fine while the engine is running and do nothing while the engine is off?
Sit in the car with the engine off and doors closed and press lock/unlock on the key fob. What happens?
While sitting inside the car with both doors closed, the lock/unlock buttons on the dash work fine while the engine is running and do nothing while the engine is off?
Sit in the car with the engine off and doors closed and press lock/unlock on the key fob. What happens?
wondering if it’s a key battery issue? Very inconsistent.
Thread Starter
Newbie
Joined: Jan 2019
Posts: 14
Likes: 2
SL500
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Thread Starter
Newbie
Joined: Jan 2019
Posts: 14
Likes: 2
SL500
tried it again today - same. I got in the car. Left it off. Closed the door. Used the fob and it worked multiple times. Then I drove around for a while. Got home. Turned off the car. Tried the fob. Nothing. Opened and closed the door. Still nothing.
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