Stutter start when warm.
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Junior Member
Joined: Aug 2024
Posts: 29
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2024 GLE 450 2016 s65 Coupé
Stutter start when warm.
Good afternoon,
I bought a 2016 s65 coupe (33k miles) a few weeks ago. At first I thought I didn't hold the start button long enough but now I am realizing there is a stutter start when the car is warm. What I mean by this is sometimes I hear fuel pump and it starts right up. Sometimes i see a quick rpm jump, then nothing, then it starts a few seconds later. Almost like the starter kicked but the rest of the start cycle didnt go off. Only once has it done this twice before starting. Its not every time but it does only happen when the engine is warm.
Is this like vapor lock? A battery starting to go? Fuel pressure issue?
There are zero codes associated with this. (Topdon 800) only a right mirror short to ground for the heater.
Anyone have any insight?
Thanks in advance, car has been amazing otherwise.
Mike
MBs65coupe on IG
I bought a 2016 s65 coupe (33k miles) a few weeks ago. At first I thought I didn't hold the start button long enough but now I am realizing there is a stutter start when the car is warm. What I mean by this is sometimes I hear fuel pump and it starts right up. Sometimes i see a quick rpm jump, then nothing, then it starts a few seconds later. Almost like the starter kicked but the rest of the start cycle didnt go off. Only once has it done this twice before starting. Its not every time but it does only happen when the engine is warm.
Is this like vapor lock? A battery starting to go? Fuel pressure issue?
There are zero codes associated with this. (Topdon 800) only a right mirror short to ground for the heater.
Anyone have any insight?
Thanks in advance, car has been amazing otherwise.
Mike
MBs65coupe on IG
