Bizarre issues with Leon

Jan 15, 2025
1
0
Evening! New to the forum and looking to see if anyone might know wtf has happened to my Leon!

Long story short, I have a 67 plate Leon that has been having some issues of late. Recently, the car will not start. Once you’re in, the dashboard will light up with various error messages but won’t fire up.

Last month, it was in the garage as the heater was not working - a new heater matrix, £3000 and a new ECU (after vehicle recall) and thought everything was hunky dory. Little over a month later, here we are now.

Picture below as an example of the errors. Also throws up:

ESC error
‘auto hold is not available’
‘front assist unavailable’
‘Fault: Electronic parking break’

Fairly sure there are more too but they’re not immediately springing to mind. Car generally cycles through the errors - any help would be massively appreciated!

IMG_4902.jpeg
 

Kapeta

Active Member
Jan 9, 2025
31
7
I had those issues, changed battery (died), done a reset to the errors and now and then just the front assist comes back for a minute or two and then goes away
 
Last edited:
Mar 19, 2025
4
0
Evening! New to the forum and looking to see if anyone might know wtf has happened to my Leon!

Long story short, I have a 67 plate Leon that has been having some issues of late. Recently, the car will not start. Once you’re in, the dashboard will light up with various error messages but won’t fire up.

Last month, it was in the garage as the heater was not working - a new heater matrix, £3000 and a new ECU (after vehicle recall) and thought everything was hunky dory. Little over a month later, here we are now.

Picture below as an example of the errors. Also throws up:

ESC error
‘auto hold is not available’
‘front assist unavailable’
‘Fault: Electronic parking break’

Fairly sure there are more too but they’re not immediately springing to mind. Car generally cycles through the errors - any help would be massively appreciated!

View attachment 46266
Good evening, everyone,
I have a Leon with number 67 which recently refused to start. Have you had any help resolving the issue ?
 
Mar 19, 2025
4
0
Evening! New to the forum and looking to see if anyone might know wtf has happened to my Leon!

Long story short, I have a 67 plate Leon that has been having some issues of late. Recently, the car will not start. Once you’re in, the dashboard will light up with various error messages but won’t fire up.

Last month, it was in the garage as the heater was not working - a new heater matrix, £3000 and a new ECU (after vehicle recall) and thought everything was hunky dory. Little over a month later, here we are now.

Picture below as an example of the errors. Also throws up:

ESC error
‘auto hold is not available’
‘front assist unavailable’
‘Fault: Electronic parking break’

Fairly sure there are more too but they’re not immediately springing to mind. Car generally cycles through the errors - any help would be massively appreciated!
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View attachment 46266
Could a failing battery or dodgy ground connection cause this kind of system-wide freakout, or am I looking at something deeper?
 
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