Reliability
http://forums.edmunds.com/discussion...gl450-reliable

http://www.reliabilityindex.com/rati...st/Large%20SUV
My previous car was a 1997 G and it got alot of TLC on the mechanical parts. All the electrical problems on the GL seems harder to cope with.
John
We are currently looking at a new 2015 or a pre-owned 2014 GL550. I can't find a 7 seater that compares to it.




I change the oil ever 10k miles with mobile 1 0W-40 and don't have to add any in between oil changes. I use regular unleaded so gas is cheap and I average around 16.3 MPG combined city/hwy. I was closer to 18 MPG on average with the stock 19" wheels but the 22" wheels/tires do cost you dearly in MPG's.
The GL is very nice on long drives with the smooth ride and comfortable seating position. I'm probably going to get an SL65 for fun but will keep the GL for long drives and family outings. Go for it. I would say get one with over 120k miles and it shoud all be sorted out and ready to drive maintenance free for quite some time.
Well after 4 Check engine lights (Blue Tech low... the Check Engine Light came on before the warning !, Fuel line break spraying diesel over a relay, Blue Tech heater replacement and an O-ring failure on the turbo) and over $3000 in 3 months. I tried to work with Mercedes of Westminster, CO but ended up deciding to try to trade back the vehicle for a gas engined car. Unfortunately they did not offer me a good value on my car for a trade in so I was basically losing all my equity in the vehicle (interestingly I test drove a 2010 ML with 40k on it and the check engine light came on while I was driving it !! ). In the end I decided not to give my trade back to that dealership and went for a new Japanese car... lost about $10k over 3 months so will NEVER buy a Mercedes again.
My advice, DO NOT buy and older Mercedes and if you buy new do not expect them to last unless you have deep pockets ! Oh and if you are still thinking of buying a diesel, don't if you live in a cold climate !
I guess out of every few made their is a bad one. Good luck with your new purchase.
I had similar issues with my 2007 BMW X5, I ditched it. it was in the shop at least once every other month and it would stay there for a week or more....got tired of it and sold it and took a loss.
So I understand.
Well after 4 Check engine lights (Blue Tech low... the Check Engine Light came on before the warning !, Fuel line break spraying diesel over a relay, Blue Tech heater replacement and an O-ring failure on the turbo) and over $3000 in 3 months. I tried to work with Mercedes of Westminster, CO but ended up deciding to try to trade back the vehicle for a gas engined car. Unfortunately they did not offer me a good value on my car for a trade in so I was basically losing all my equity in the vehicle (interestingly I test drove a 2010 ML with 40k on it and the check engine light came on while I was driving it !! ). In the end I decided not to give my trade back to that dealership and went for a new Japanese car... lost about $10k over 3 months so will NEVER buy a Mercedes again.
My advice, DO NOT buy and older Mercedes and if you buy new do not expect them to last unless you have deep pockets ! Oh and if you are still thinking of buying a diesel, don't if you live in a cold climate !
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I'm not a fan of leasing, but there seems to be growing tide of leasers for this brand. If you look at most of the used or CPO ones they are off leases. DO NOT LEASE for more than 36 months! Other wise you are defecting the purpose.
Here is my rational. These vehicles are the cats meow when the run, but when it comes time for fixing them is when your hear the complaining start. Everything about them is expensive.
If you can land a CPO that's your best bet for a used one. The Financing is great, the warranty is longer and they have been vetted out from the dogs. And they are often priced a bit higher than a non-MB lot as they have to pack this on to the vehicle.
If buying used and not CPO this is what happens. Data is being kept on these and like everything else its being monitored. Financing will be higher then the tradition used vehicle, extended warranties are limited, more expensive, sometimes none at all and some that don't cover the entire vehicle. Especially the parts that go bad so often with these. Their rationale is when these things break you'll pay to get it fixed vs. paying the note. Not saying this is always the MO, but it's being done at some level. Statistics have shown that people that buy used with miles are folks with questionable credit. I have excellent credit and when I shopped around for a loan for one that was out of warranty I was shocked beyond dumfounded.
Also consider a gasser vs. diesel technology. It's hit and miss with either one there may be issues. Some people on here say they are bullet proof and some have had problems. I've been down the diesel path and it was ugly. I've had two German ones and both ended in disappointment. The domestic version was a different breed of diesel and never had a problem. They run the diesel ones all over and never seem to have issues, perhaps different specs for the US? Don't know. If you're under warranty stuff gets fixed, but when making payments the vehicle should be in your garage vs. theirs is my take on it? Nothing is perfect I realize that, but when your off the road for more than you should be then there's a problem Houston.
John
Bought a 2010 GL350 CPO with about 21K miles in December 2014. The first 6 months was everything I was hoping the car would be. Then **** started to hit the fan. Way too many problems to list...brought it back to the dealer on a monthly basis. The final straw was having it break down 2x within 5 days on Southern California freeways, with wife and 2 young kids in the car; something I don't ever want to experience again.
Loss a ton of money on the car but had to get rid of it when the warranty expired (still had to pay a bunch of out pocket under warranty as BS dealers told me multiple times that multiple problems were not covered).
Went back to Japanese (Lexus GX460) and haven't looked back. Like it's been said, the GL is "nice" but it is just such a ****ty car from a reliability standpoint. Assuming this is a family car as it was for us, reliability is #1 and the tripe star and the looks mean little....
Only issue was in the early years was on the 19" rims it ate tires until a few better ones finally became available in that size.
Its a incredible, ride, a GREAT long haul, family hauler. No sweat doing 3-4 hrs straight and a 9-10 day is not bad. Everyone that rides in it raves about the ride.
Only glitch now is the joystick is failing on the Command Unit and I need to find a repair as with the 07's with the fiber optic bus, an aftermarket replacement sound/Nav head would be a huge cost.
If you can get an early model, with maintenance records, and ideally garaged from a western state, I'd buy it.












Another point: Get a good indy and give them lots of love. What i don't fix myself I take to my fam at Escondido German Auto (should you be in the San Diego area).




Another point: Get a good indy and give them lots of love. What i don't fix myself I take to my fam at Escondido German Auto (should you be in the San Diego area).
I have found my GL 350 to not be very reliable. Lots of issues over the years. Since repairs and parts are so expensive here in the Bay Area, I bought my first ever extended warranty, and it's more than paid for itself.
I do all scheduled maintenance myself, the truck is pretty easy to work on, there is lots of space. Just a few stupidly annoying things for regular maintenance - like the transmission fluid and filter replacement procedure that is way harder than it should be, the battery being sealed under the passenger seat, etc.
At 65k miles, I'm about to have to go in and get my passenger side mirror replaced for the second time - the blind spot sensor has failed again, get the airbag recall done, and get a front-end drivetrain noise diagnosed - suspect a front bearing going bad.
I'm surprised my airbags haven't failed yet - that's about the only common problem my truck hasn't had yet - I've had all the rest.
My main complaint about the truck isn't really actually reliability, it's how antiquated and crappy the COMAND system is...




I have found my GL 350 to not be very reliable. Lots of issues over the years. Since repairs and parts are so expensive here in the Bay Area, I bought my first ever extended warranty, and it's more than paid for itself.
I do all scheduled maintenance myself, the truck is pretty easy to work on, there is lots of space. Just a few stupidly annoying things for regular maintenance - like the transmission fluid and filter replacement procedure that is way harder than it should be, the battery being sealed under the passenger seat, etc.
At 65k miles, I'm about to have to go in and get my passenger side mirror replaced for the second time - the blind spot sensor has failed again, get the airbag recall done, and get a front-end drivetrain noise diagnosed - suspect a front bearing going bad.
I'm surprised my airbags haven't failed yet - that's about the only common problem my truck hasn't had yet - I've had all the rest.
My main complaint about the truck isn't really actually reliability, it's how antiquated and crappy the COMAND system is...
Just saw this on the other forum and looks to be a good upgrade if you are looking to keep the truck for a while. Don't think it is worth it just for Bluetooth music streaming but hey you never know..
https://avinusa.com/mercedes-benz-ml...on-system.html




