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Robert
Robert, UK Qualified Car Technician
Category: Mercedes
Satisfied Customers: 4636
Experience:  Fully qualified / self employed garage technician in the UK
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2001 smart two, cuts out when braking at the same time brake

Customer Question

2001 smart two, cuts out when braking at the same time brake light and yellow triangle warning light comes on
Submitted: 3 years ago.
Category: Mercedes
Expert:  Robert replied 3 years ago.

Hi..

 

Hopefully i can help..

 

Sounds like you may have faulty brake light switch - even though primarily used to operate the brake lights - the ecu also monitors this switch too to determine as and when you use the brake on and off to adjust the engine parameters and if faulty could have a knock on effect and acause the engine to cut out..It certainly something to have checked out and or have diagnosed diagnostically to see of the ecu has stored fault codes related to the BL switch...I do hope this helps