2016 e250 starting issue -- attempts to turn over
Is it possible that I am just not getting enough power from either the booster pack (which was fully charged) or the vehicle being used to boost? I have my battery charger currently trickle charging the battery, but will wait a number of hours before trying again.
Has anyone seen this behavior? I do have a Scangauge ODBII unit as well as a generic ODBII adapter that I use along with Torque if there are any codes I should attempt to read from the vehicle?
Thanks in advance!
Diesels are hard to crank and require a lot of power for the starter and the glow plugs, which are typically employed around starting in all temperatures for emissions reasons. So I think that it is quite likely that you just haven’t charged it up enough yet.




Is it possible that I am just not getting enough power from either the booster pack (which was fully charged) or the vehicle being used to boost? I have my battery charger currently trickle charging the battery, but will wait a number of hours before trying again.
Has anyone seen this behavior? I do have a Scangauge ODBII unit as well as a generic ODBII adapter that I use along with Torque if there are any codes I should attempt to read from the vehicle?
Thanks in advance!
. I was away a couple days and did not get back to this until a day ago. So, I decided to connect my battery charger, and fully charge the battery (while in the car) on the trickle / 2A setting of my charger, which I connected yesterday morning. I just tried to start it again this morning, and it started right away, and as per normal, so all is good - no codes or diagnostics, so the issue was only the battery. All in all, this is a very interesting learning experience, as I would never thought, that bringing power from a booster pack or jumper cables from another car, would NOT provide sufficient power to start the vehicle.As an interesting side note, what do the roadside assistance guys do (including MB Roadside) if they are called out to a scenario where the car would need a boost to start?
Last edited by Steveo1966; Jul 30, 2020 at 09:44 AM. Reason: update
I’ve never needed a jump from roadside assistance. I suppose I just assumed they’d use their truck if a booster pack wasn’t enough. Is that not the case?
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After about 1 1/2 - 2 months the problems with starting returned. Longer than normal cranks and sometimes it took two tries to get it running.
Checked the alternator and it was giving a good up to 14.7V charing voltage. Then went to get a new battery but this time from Autozone. I think it was about $200 or so. Kept the almost brand new MB battery as I was thinking this may not be a battery issue at all.
Sure enough after about 2 months my starting problems return and at this point I went to do what I had been reading about in this forum and was hoping this is not the case but after 3 batteries with a good alternator do the same thing I just had to believe it is the STARTER PROBLEM.
I replaced the starter and this fixed the problem. Have not had any starting issues since and this was now about a year and a half ago.
My E550 sits now very often for several weeks as I drive the S550 that I recently got. But I do drive it little bit and every time it has started without any hesitation after 3 or even 4 weeks sitting still.
If you run in the problems again in a few months time forget the battery, it is your starter that is causing the issue. The problem seems to be that the starter partially grounds itself during start sequence and robs your battery of power and if battery is not fully charged, which it will never be other than after using a charger, it will not have enough juice to get the car going.
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After about 1 1/2 - 2 months the problems with starting returned. Longer than normal cranks and sometimes it took two tries to get it running.
Checked the alternator and it was giving a good up to 14.7V charing voltage. Then went to get a new battery but this time from Autozone. I think it was about $200 or so. Kept the almost brand new MB battery as I was thinking this may not be a battery issue at all.
Sure enough after about 2 months my starting problems return and at this point I went to do what I had been reading about in this forum and was hoping this is not the case but after 3 batteries with a good alternator do the same thing I just had to believe it is the STARTER PROBLEM.
I replaced the starter and this fixed the problem. Have not had any starting issues since and this was now about a year and a half ago.
My E550 sits now very often for several weeks as I drive the S550 that I recently got. But I do drive it little bit and every time it has started without any hesitation after 3 or even 4 weeks sitting still.
If you run in the problems again in a few months time forget the battery, it is your starter that is causing the issue. The problem seems to be that the starter partially grounds itself during start sequence and robs your battery of power and if battery is not fully charged, which it will never be other than after using a charger, it will not have enough juice to get the car going.
. And fingers crossed that I do not in future!

. I was away a couple days and did not get back to this until a day ago. So, I decided to connect my battery charger, and fully charge the battery (while in the car) on the trickle / 2A setting of my charger, which I connected yesterday morning. I just tried to start it again this morning, and it started right away, and as per normal, so all is good - no codes or diagnostics, so the issue was only the battery. All in all, this is a very interesting learning experience, as I would never thought, that bringing power from a booster pack or jumper cables from another car, would NOT provide sufficient power to start the vehicle.As an interesting side note, what do the roadside assistance guys do (including MB Roadside) if they are called out to a scenario where the car would need a boost to start?



