MB 350 Diesel
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Joined: Sep 2024
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MB 350 Diesel
Hi to everyone , Im new to the forum and new to Mercedes. Just recently bought a 2010 E350 Cdi with 69000 miles on the clock and I love it. (Great combo, Blue with cream interior).
What I've noticed is every morning when i start the car cold the rpm goes up and down for 5mins and it feels the car is slightly shaking. Once it gets warm i slightly depress the accelerator and bring the rpm up few times and the car goes to normal and rpm stable. Once it gets to normal temp the car is great. It puts a smile on my face every-time I drive it ! What ive also noticed its a strange smell sometimes around the car when i stop
mechanic say to me are injectors … help me.
What I've noticed is every morning when i start the car cold the rpm goes up and down for 5mins and it feels the car is slightly shaking. Once it gets warm i slightly depress the accelerator and bring the rpm up few times and the car goes to normal and rpm stable. Once it gets to normal temp the car is great. It puts a smile on my face every-time I drive it ! What ive also noticed its a strange smell sometimes around the car when i stop
mechanic say to me are injectors … help me.
Member
Joined: Jun 2024
Posts: 191
Likes: 58
E320
Hey ernis, welcome aboard! This behavior could stem from a faulty coolant temperature sensor or an issue with the idle air control valve, both of which can throw off the ECU’s management of the air-fuel mixture. Since your mechanic pointed fingers at the injectors, it’s possible that dirty or leaking injectors are causing a lean condition, leading to those RPM swings and the odd smell you’re experiencing when you come to a stop. To get a clearer picture of what’s going on, running a full system scan would be a smart move. the youcanic full system scanner is excellent for diagnosing these Mercedes models, offering detailed insights that can help you pinpoint the exact issue. Alternatively, Xentry is a solid tool if you’re up for a bit more of a learning curve. Hopefully, with the right diagnostics, you can smooth out those rough idles and enjoy those morning drives without any surprises. Hang in there, and may your E350 keep bringing that smile without the sneaky hiccups!
