Hard Crank only first start of the day!!!
Thread Starter
MBWorld Fanatic!
Joined: Apr 2015
Posts: 1,739
Likes: 120
From: London ON Canada
2012 C300 4Matic Sport Sedan
Hard Crank only first start of the day!!!
so i bit the bullet and bought a new battery $280 since the voltage was on the lower end. I unfortunately am chasing a problem I'm still having an issue only with the first crank of the day.
My next guess would be the fuel filter.... the manual says change it at 240,000KM I'm at 140,000KM so I'm going to do this anyways and see what up.
has anyone else had this issue?? what was the fix!!!
I have ZERO codes on the car, or hidden codes.
My next guess would be the fuel filter.... the manual says change it at 240,000KM I'm at 140,000KM so I'm going to do this anyways and see what up.
has anyone else had this issue?? what was the fix!!!
I have ZERO codes on the car, or hidden codes.
Thread Starter
MBWorld Fanatic!
Joined: Apr 2015
Posts: 1,739
Likes: 120
From: London ON Canada
2012 C300 4Matic Sport Sedan
so Id say a lot of cranking then it catches. it's defiantly not normal and I'm stuck because theres no codes.
well I need to hold the key for about 10 seconds to the on position white the car keeps trying to start. It's only the first start of the day every day which is weird. even if i drive the car to work, work 8 hours and get in it starts fine but if i leave it over night then start it it happens again.
I just changed the battery, the alternator is running perfectly.
well I need to hold the key for about 10 seconds to the on position white the car keeps trying to start. It's only the first start of the day every day which is weird. even if i drive the car to work, work 8 hours and get in it starts fine but if i leave it over night then start it it happens again.
I just changed the battery, the alternator is running perfectly.
Junior Member
Joined: Sep 2015
Posts: 44
Likes: 7
From: San Jose, CA
2008 C300 Sport M6
so Id say a lot of cranking then it catches. it's defiantly not normal and I'm stuck because theres no codes.
well I need to hold the key for about 10 seconds to the on position white the car keeps trying to start. It's only the first start of the day every day which is weird. even if i drive the car to work, work 8 hours and get in it starts fine but if i leave it over night then start it it happens again.
I just changed the battery, the alternator is running perfectly.
well I need to hold the key for about 10 seconds to the on position white the car keeps trying to start. It's only the first start of the day every day which is weird. even if i drive the car to work, work 8 hours and get in it starts fine but if i leave it over night then start it it happens again.
I just changed the battery, the alternator is running perfectly.
Thread Starter
MBWorld Fanatic!
Joined: Apr 2015
Posts: 1,739
Likes: 120
From: London ON Canada
2012 C300 4Matic Sport Sedan
**** that seems like a ***** of a job hahaha. did you ever end up getting a code on a scanner? how did you narrow it down to the fuel injectors?
Junior Member
Joined: Sep 2015
Posts: 44
Likes: 7
From: San Jose, CA
2008 C300 Sport M6
The car showed no codes, and I suspected the injectors based on that, plus others in the forum having similar issues.
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Thread Starter
MBWorld Fanatic!
Joined: Apr 2015
Posts: 1,739
Likes: 120
From: London ON Canada
2012 C300 4Matic Sport Sedan
ill update this, i need an oil change in the next 1000km so i went to get an oil filter from a local supplier and they carry liqui molly. they had a bunch of fuel additives there and one can was called pro line fuel system cleaner concentrate. they had a rep there and said give this a shot one can should do the trick.
they apparently sell it to the local MB dealership and before they change injectors they some times try this. he said run it in the car for a tank of gas once its done fill up the gas run it 50KM then do an oil change and your injectors should be cleaned as well as the entire fuel system.
It was $12 figured it was worth a shot since injectors are $65 each....
they apparently sell it to the local MB dealership and before they change injectors they some times try this. he said run it in the car for a tank of gas once its done fill up the gas run it 50KM then do an oil change and your injectors should be cleaned as well as the entire fuel system.
It was $12 figured it was worth a shot since injectors are $65 each....
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