Oct 29, 2025
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Hello i have a problem with my Seat Leon 2003 1m, the problem is that i lock the driver door and only the driver door locks the other doors dont lock. I replaced the comfort module but it didnt help. Did someone have this problem if you did please give me an answer. Thanks
 
Hello. I suppose you are locking with the key on the door lock. The remote doesn't work?
Nope the remote locking doesnt work it blinks but doesnt lock it. I went to the car electrician to pair it with the module but he cant fix it because the normal locking with the key doesnt work.
 
Well, I would start checking the module and all the connections. And then would do a VCDS scan to check for errors. Do you or your friend own VCDS software?
 
Do the other doors work ok when you use the lock/unlock inside the car? If so I would change the drivers door lock module. Cheap enough on ebay and fairly simple job.
 
Do the other doors work ok when you use the lock/unlock inside the car? If so I would change the drivers door lock module. Cheap enough on ebay and fairly simple job.
Nope , when i use the lock unlock inside the car it only locks the trunk. My rear doors dont open because the inside doorknobs are both broken . I checked if it maybe was the child lock but its not.
 
Nope , when i use the lock unlock inside the car it only locks the trunk. My rear doors dont open because the inside doorknobs are both broken . I checked if it maybe was the child lock but its not.
Yeah in that case you definitely need VCDS to get an idea of whats going on. Possible the rear doors are just deadlocked because the car was locked with the remote before the malfunction. Have you checked the fuses are ok? Fuses 6 and 38 in the dashboard fusebox
 
I had this issue for years and after buying 4 new lock modules it turns out it was missing one of a few fuses related to doors, locks, etc.
 
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Will check the fuses when i get home . Thanks
Fuse number 14 as well, ...so 6,14, and 38.

If all good then you really need VCDS to see if you have communication wth the comfort module and the 4 locks. If you have communication with the module, then possible that there are broken wires where the wiring goes to the drivers door from the car body.
 
The interior light works, and for the vcds i will find someone who has it. Thanks
No worries. Worth noting that when you go to VCDS, the central locking on our cars isn's under the 'central locking' tab, it's under central convieniance. That's caught a few people out before.