2012 Mercedes-Benz ML350 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2012 Mercedes-Benz ML350

Vehicles equipped with a 7-speed automatic transmission may develop a rough shifting condition, most commonly going up from first to second gear and going down from third to second or second to first gear. Our technicians tell us this is due to an internal component failure. Mercedes has released updated parts; the transmission will need to be removed and disassembled to complete the necessary repairs.

The camshaft adjuster solenoid (which is related to the variable valve timing system) may fail or timing chain/balance shaft components may wear, resulting in illumination of the Check Engine Light and various drivability issues. Mercedes-Benz has released a service bulletin outlining specific repair instructions depending on fault codes stored.

When turning the ignition key there is either a several second wait, or will have to retry.
Car has left me stranded, where key is in the on position but nothing registers and only auxiliary electrical works (stuff that works when no key in ignition.)
This problem started occurring after a service interval where half a dozen error messages required some steering parts to be replaced.
Knauz Mercedes kept the car for a week and could find no fa...

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It occurs ever time I back out of the garage.
I have less than 4,000 miles
The groaning or moaning sound goes away when shifting into
forward

where is it located, how do i remeove it from my
2012 ML350 V-6 4-matic (gas)

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I have a 2012 ml 350 blue tec. Engine oil cooler seal failed @ 51000 miles. Warranty would not cover, 50000 mile warranty. 60000 miles blue tec heater had to be replaced. After complaining merc benz decided to replace at no charge. Suv drives great and has plenty of power

This is my second ML350 and these cars are unreliable and very costly to repair. The parts prices are outrageous and brakes and rotors' prices are just ridiculous. Struts, mounts and engine mounts are $3500. The dealer, Mercedes Benz of San Diego was terrible and fixed nothing. I will not buy another Mercedes truck again. BTW, my 2008 CL65 with 21,000 miles needed front brakes and rotors and a ...

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