2009 Mercedes-Benz ML350 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2009 Mercedes-Benz ML350

2009 Mercedes-Benz ML350 Problems

Delay before crank start and no starting.

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...

"No Start" Due to Drive Authorization's Failure to Recongnize Keys

A no start condition may develop due to an anti-theft system fault. If the drive authorization module fails to recognize the keys, the engine will not start. In many cases, a new module and keys will be needed to correct this problem.

Internal Component Failure May Cause Rough Shifting

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.

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2009 Mercedes-Benz ML350 Questions

The COMAND system is totally dead, any idea what is the charge for replacement? (1 answer)

My COMAND system is not be able to turn on. Not be able to use the radio, navi, phone, CD player and everything on that unit. I have waited for few days, and seems it is totally dead. Is there anyone knows what is the price range to get the COMAND replaced in the dealership?

I need a rt door actuator replaced. MB want $800 (1 answer)

Does anyone know a less expensive shop?

Radio stays on after keyless button pushed & engine shutdown. (1 answer)

From last week all of a sudden radio stays on (I think ignition also stays on)after shutting engine. I am using keyless on/off button to turn on or off car. If I use key then it shuts off.

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2009 Mercedes-Benz ML350 Recalls

Driver's Frontal Air Bag Inflator Ruptures And Sprays Metal Fragments

The driver's frontal air bag inflator may deploy the air bag with excessive pressure, resulting in the inflator rupturing and causing metal debris to be sprayed onto vehicle occupants. Dealers will replace the driver's frontal air bag module free of charge to resolve the concern.

Possible Electrical Fire from Water Damaged Lift Gate Control Module

Due to a faulty seal around the tail light assembly, water may enter the rear compartment containing the spare tire. The water could damage the lift gate control module, causing it to fail. The failed module could overheat, increasing the risk of a fire. Dealers will update the tail light seals and relocate the lift gate control module. This recall is expected to begin during April of 2009. The Mercedes recall number is 2009030003.

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2009 Mercedes-Benz ML350 Reviews

I have a 2009 preowned ml350 with 32k miles It burns a qt of oil every 3200 miles The dealer is telling it is normal I dont believe it . I have a 2001 S430 with 124000 It does not burn a drop of oil

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