E350 RWD Won't start when cold
#1
![Cool](https://mbworld.org/forums/images/icons/icon6.gif)
My E350 won't start when cold. It cranks, but won't start. It takes few tries and then it starts. When the car is warm it starts with no problems whatsoever. I changed a crank sensor, but the problem is still there. Does anyone know what this could be?
Thanks!
Thanks!
#2
Senior Member
Join Date: Feb 2010
Location: Cross Roads, PA
Posts: 431
Likes: 0
Received 4 Likes
on
4 Posts
2008 ML320CDI
try a new temp sensor. It appears that might be causing a the fuel injection to run lean as if the engine were warm. It may or may not affect your temp guage, there might be 2 different sensors, one for fuel delivery and other for temp guage. It might be worth to purchase a 1 year subscription to alldatadiy.com Its very cheap, and can provide some good leads.
#3
Cold Start Problem (PZEV vehicle)
I just cameback from my mechanic and after a series of tests he concluded that the there is a low fuel pressure. Car still barely starts when its cold. My question is....is only the fuel pump responsible for a low fuel pressure or it could be something else that makes fuel pressure to drop?
Thank you in advance.
p.s. it is a bas 2007 E350 PZEV car(from CA)
Thank you in advance.
p.s. it is a bas 2007 E350 PZEV car(from CA)