Slow starting - cranks for a while before it finally starts
Thread Starter
Member
Joined: Sep 2019
Posts: 75
Likes: 48
AMG GTS (2016), GL63 (2016), SL63 (2022) -- Old Cars: E400, CLS 63s, ML 63, CL 600, S550 ...
Slow starting - cranks for a while before it finally starts
All of our MB vehicles start more or less instantly when they crank. My daughters 2008 ML did as well - until recently. The car cranks (nice and fast) but does not start for anywhere from 2-5 seconds or more. No "almost" catching during that time. It just cranks as though there is no fuel, and then decides to start perfectly - but after too many seconds of cranking. As I say, this is new behaviour.
The car is not throwing any codes - the scan comes up clean on my iCarsoft MB 3.0.
Any suggestions on what to look for?
I searched around and didn't find this posted anywhere - apologies if I missed it.
Thank you all so much!
The car is not throwing any codes - the scan comes up clean on my iCarsoft MB 3.0.
Any suggestions on what to look for?
I searched around and didn't find this posted anywhere - apologies if I missed it.
Thank you all so much!
Member
Joined: Jul 2010
Posts: 131
Likes: 24
gl550
All of our MB vehicles start more or less instantly when they crank. My daughters 2008 ML did as well - until recently. The car cranks (nice and fast) but does not start for anywhere from 2-5 seconds or more. No "almost" catching during that time. It just cranks as though there is no fuel, and then decides to start perfectly - but after too many seconds of cranking. As I say, this is new behaviour.
The car is not throwing any codes - the scan comes up clean on my iCarsoft MB 3.0.
Any suggestions on what to look for?
I searched around and didn't find this posted anywhere - apologies if I missed it.
Thank you all so much!
The car is not throwing any codes - the scan comes up clean on my iCarsoft MB 3.0.
Any suggestions on what to look for?
I searched around and didn't find this posted anywhere - apologies if I missed it.
Thank you all so much!
The problem solved until the starter failed ( didn’t seem like a starter problem) but starting 1st try every time after replacing new starter.
Thread Starter
Member
Joined: Sep 2019
Posts: 75
Likes: 48
AMG GTS (2016), GL63 (2016), SL63 (2022) -- Old Cars: E400, CLS 63s, ML 63, CL 600, S550 ...
Thread Starter
Member
Joined: Sep 2019
Posts: 75
Likes: 48
AMG GTS (2016), GL63 (2016), SL63 (2022) -- Old Cars: E400, CLS 63s, ML 63, CL 600, S550 ...
Newbie
Joined: Oct 2021
Posts: 11
Likes: 0
2007 ML500
I would start with Replacing Crankshaft and Camshaft sensors. One that is still working but on its way out will exhibit non running conditions and may not throw a code until its gone kaput. Their cheap insurance and alot easier to do in your garage with a cold engine rather than stuck in the middle of nowhere with a hot one.
My m113 did something similar, sometimes would start immediately, other times would take a good 5 seconds before catching. Camshaft sensor seems to have done the trick. Also no codes when it was acting up.
My m113 did something similar, sometimes would start immediately, other times would take a good 5 seconds before catching. Camshaft sensor seems to have done the trick. Also no codes when it was acting up.
Thread Starter
Member
Joined: Sep 2019
Posts: 75
Likes: 48
AMG GTS (2016), GL63 (2016), SL63 (2022) -- Old Cars: E400, CLS 63s, ML 63, CL 600, S550 ...
I would start with Replacing Crankshaft and Camshaft sensors. One that is still working but on its way out will exhibit non running conditions and may not throw a code until its gone kaput. Their cheap insurance and alot easier to do in your garage with a cold engine rather than stuck in the middle of nowhere with a hot one.
My m113 did something similar, sometimes would start immediately, other times would take a good 5 seconds before catching. Camshaft sensor seems to have done the trick. Also no codes when it was acting up.
My m113 did something similar, sometimes would start immediately, other times would take a good 5 seconds before catching. Camshaft sensor seems to have done the trick. Also no codes when it was acting up.
Many thanks for the tip.
Trending Topics
MB World Stories
The Best of Mercedes & AMG
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
