Differences between 2009 and 2010 Gl350 Bluetec/GL320CDI/Bluetec
The navigation system/command was changed for the 2009 model year so no change there. I frequently hear people say it was changed in 2010, it wasn't.
The auto press noticed that window stickers showed a change from 398 lbft of torque to 400 for 2010. My 2009 however shows 400 lbft in the engine spec section of the owners manual, so I don't think there were any changes to the engine or exhaust system. The Urea system was added in 2009.
What you should watch out for if you are comparing the two model years is comparing the packages. The premium packages include fewer items on later model gls. So, a 2010 with a P2 package might have fewer options than a 2009 with a P1. The 2010 - 12 models tend to have more items added al la carte. The 2009 for instance has the Harmon Kardon stereo and front passenger seat memory and lumbar adjustment included in the P1. You had to get the P2 in 2010 to have premium stereo. Be sure you know what you are buying and don't trust the sales person to know. I've seen the options on many GL's misrepresented on sites like Ebay. I don't think the salespeople are necessarily trying to be deceptive, it's just confusing.
Also keep in mind that most 320/350/450s are typically going to have MB-Tex upholstery instead of leather. This could be a good thing if you are buying used because it tends to hold up better than leather. It is very difficult to tell leather from MB Tex. You may or may not care but again, don't trust the salesperson to know the difference.
Make sure you carfax any potential purchase..
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Put it this way, my current GL has MB Tex. I want leather on my next one, but with three kids I think I'm probably making a foolish decision. The MB Tex holds up extremely well.
If you see seats that look like leather but have very little wear, they are probably MB Tex.
On a 2009, you will know if it has the P1 package if it has the Harmon Kardon logos on the front door speakers but the grey plastic framed round fog lights. The P2 package in 2009 had oval chrome framed fog lights that are corner illuminating lights. The P2 will have three zone HVAC and the lighting package in addition to all the stuff included in the P1. If you get a 2009 with the p2 package it will be very well optioned but will probably be hard to find.







