Engine stutter and noise when startup
Thread Starter
Newbie
Joined: Sep 2022
Posts: 12
Likes: 2
From: Kuala Lumpur, Malaysia
C207 E250 CGI
Engine stutter and noise when startup
Getting this sound and hesitation when starting up.
any ideas on what's going on?
Thanks in advance
https://youtube.com/shorts/dsGC6ntN0mQ?si=D8T9eaI5zrUOyMFn
https://youtube.com/shorts/RARVZyi3rjI?si=R5st2s94eZrz63l1
any ideas on what's going on?
Thanks in advance
https://youtube.com/shorts/dsGC6ntN0mQ?si=D8T9eaI5zrUOyMFn
https://youtube.com/shorts/RARVZyi3rjI?si=R5st2s94eZrz63l1
Out Of Control!!
Joined: Apr 2019
Posts: 11,923
Likes: 6,776
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
infamous timing issue
Getting this sound and hesitation when starting up.
any ideas on what's going on?
Thanks in advance
https://youtube.com/shorts/dsGC6ntN0...T9eaI5zrUOyMFn
https://youtube.com/shorts/RARVZyi3r...st2s94eZrz63l1
any ideas on what's going on?
Thanks in advance
https://youtube.com/shorts/dsGC6ntN0...T9eaI5zrUOyMFn
https://youtube.com/shorts/RARVZyi3r...st2s94eZrz63l1
1-- Failure to start:
read out fuel pressures with a scanner.
what's current mileage engine type?
you may need filters serviced or issue with HPFP
2-- Valve timing issue:
I do NOT call this "rattle" as it does NOT yet sound like classic worn VVT gear lock pin
This is limp secondary chain tensioners.
Perhaps with a timing fault from Bk1 intake cam
(this may be impacting fuel pump timing ie. no start)
3-- Leaky CAM sensors:
Replace your 4x CPS sensors if found leaking oil in harness.
4-- Engine oil is essential !
these engines really on oil viscosity grade for timing
they can ingest a lot of it, check level
they tend to burn it black shortly, oil interval at 5kMi !
5-- Service needs
High maintenance translates in frequent timely service. Fortunately it is still mostly basic.
Get a scanner it will help retrieve data for free.
6-- Cost wise
You are looking at couple hundreds in parts, less than $1k not including labor.
Last edited by CaliBenzDriver; Nov 12, 2023 at 11:07 AM.
