Mercedes-Benz GL450 Problem Report
Mercedes-Benz GL450 Rough Shifting of Automatic Transmission
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.
Have owned over 40 cars in my life from Australia, London, USA,, never have I experienced this concern in any car previously.
Extremely dissappointed in the Mercedes GL 450 quality and technology, this is the 4th. mercedes vehicle, others were cars not SUV made in the USA., absolute rubbish.
Cost to repair approx. $6,000.00 that's why it sits in my garage for 12 mths.. Most certainly never purchase a Mercedes Product again.
VW's are better quality. - wankoJones
The transmission has been slipping since it was new, rolling back on hills like it was a manual. I have reported it since day one and they couldn't find anything wrong. It had a technical service bulletin on an electrical component outside the transmission performed in 2007 but nothing else. It now shutters, they say I need a new transmission and of course its long out of warranty. I've called mbusa and they don't want to hear about it because its out of warranty. - Visitor
After I started my Mercedes GL450 and changed gear to drive, noticed roughness in driving. Pulled over and put the car in park and back into drive. This time it would not move. It seems it got stuck in nuetral mode with no indication what so ever on the dash board or anywhere.Had it towed to the dealer, they informed me that the automatic transmission pump is bad and they saw metal shaving in the transmission pan. The fix is to replace the transmission. They could not find the cause. They did aknowledge that there is an internal component failure. I called MercedesB USA, they informed me that they had no recall on transmission issues.
How can I follow up on what you had stated that Mercedes released updated parts; the transmission will need to be removed and disassembled to complete the necessary repairs. - MajedHaymour
My 2007 GL 450 is having shifting problems, It either is stuck in gear or will not move, causing to restart the car to clear the problem. I had to take the car in to get a new sensor plate 1300.00 repair bill. - Visitor
Transmission needs to be replaced (advised by dealer) - Visitor
odd shifting in low gears at low speeds, only noticed when going up or down hills.
have not taken the vehicle in to be checked out. - Visitor
Vehicle will not accelerate from a stop, resulting with vehicle crossing the intersection for over 1 minute with a near collision. - Visitor
It's a 2014 gl450 - Visitor
rough shifting down and up in low gears - Visitor
Low mileage but oil leak - Visitor
Goes into second gear at start. Shifts down to d2 at times - Visitor
same problem funny thing though I called mbusa they said they would pay for half of the transmission as a gift - Visitor
There are times that my shifting is so rough. We experience it when it is down shifting. How I feel it is engaging the gears so roughly. I have it checked but ofcourse once they plug in thru the obd they wont find any codes so they will just say "nothing is wrong" - Visitor
Vehicle shutters and hesitates when driving at low speeds or up hills. - Visitor
Transmission oil drained out on own accord.
Previously gear stuck and will not change down.
Have owned over 35 cars in my life and never once had a similiar problem, should think that being a premium vehicle manufacturer, Mercedes would issue a RECALL on this concern.
Will not most certainly purchase a Mercedes again, this is the 4th. one and the last one.
No different from the mass manufactured garbage made in the USA. - Visitor
After long drives on the freeway, the car will accelerate slowly. It seems like there is a bit of hesitation between shifts. After driving a bit it will solve itself, but the problem is becoming less sporadic and more common. It is an automatic transmission. - Visitor
They just get a clog or choke in the gear shift up or down - Visitor
I recently purchase used 2010 GL450. I notice the hesitataion in shifting mostly when after the vehicle has warmed up. It was sporadic, but I have noticed that it is lasting longer and longer and happening more often. - Visitor
Issue does not occur consistently. It mainly occurs during city driving when breaking from 45 Miles per hour or so to avoid a ditch in LA roads. When it has to downshift from higher gear into lower gear, ending up in 1st or 2nd gear. - Visitor
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