Mercedes-Benz GL-Klasse 166 GL 350 CDI BlueTEC, 258 PS, 7-speed automatic, all-wheel drive (2012–2015)
- Power
- 258 PS (190 kW)
- Engine codes
- 642826
- Gearbox
- 7-speed automatic
- Production years
- 2012–2015
- Running cost per month
- €772
- Fuel
- Diesel
- Median price
- €21,800
- Reliability
- 2/5
- DIY
- 1/5
Research for this car
- Gearbox guide Mercedes 7G-Tronic (722.9) 7-speed automatic: problems, costs and what to check
Buy only with fluid records and a clean full-system scan, and avoid any car that has run in limp mode or judders at a steady speed.
Known issues for this car
| Issue | Affects | Typical km | Repair cost | Source |
|---|---|---|---|---|
| Conductor plate and speed sensor failure | All 722.9 cars; early 2004-2007 builds most | 50,000 to 80,000 km | About 850 EUR for the control board (Russia, 2019 press article) | Gearbox guide |
| Torque converter lock-up clutch judder | All 722.9 cars; a Daimler bulletin covers Plus cars built 2011-2012 | 100,000 to 200,000 km | No confirmed price | Gearbox guide |
| Valve body and clutch pack wear | All 722.9 cars | 100,000 to 180,000 km | 1,500 to 1,700 EUR for a complete mechatronic (Russia, 2019 press article) | Gearbox guide |
| Old fluid and missed adaptation reset | All 722.9 cars | 80,000 to 100,000 km | About 600 EUR for a flush with new fluid (Austria, 2022) | Gearbox guide |
Before you buy this car
From the gearbox guide
- Read the shift pressure data with XENTRY or an equal Mercedes scanner. Bad result: pressure deviations above 0.5 bar, or adaptation values above 30 percent. Those point to valve body wear.
- Read the full gearbox fault memory with a full-system scanner. An engine-only OBD2 reader does not show it. Bad result: speed sensor codes P0717, P0718, P0722 or P0793, or any stored limp mode.
- Test drive cold and warm, and pull away from a stop. Bad result: stuck in 2nd, slipping between 1st and 2nd, or limp mode at about 48 km/h (30 mph).
- Hold a steady light throttle at about 60 km/h. Bad result: a shudder or hum. A scanner shows converter slip; 5 to 25 rpm is normal, and above about 80 rpm points to clutch wear.
- Ask for the fluid invoices and check the fluid. Bad result: no change after about 80,000 km, dark brown or black fluid, a burnt smell, or a fluid other than the one for the build. A wrong fluid can cause code P0741. Red-amber is the correct colour.
- Ask a dealer whether bulletin LI27.20-P-055758 applies to the car's VIN, and whether it was done. Bad result: lock-up codes FC 2783 or FC 0741 still stored.
Running costs
| Operational | €242 |
|---|---|
| Workshop | €249 |
| Fixed costs (tax, insurance) | €281 |
| Total per month | €772 |
| New-car depreciation (not included) | €136 |
ADAC figures for 15,000 km a year over 60 months
Market
Listings on mobile.de in this generation with this fuel, gearbox and power.
- Listings
- 92
- 25th percentile
- €19,000
- Median price
- €21,800
- 75th percentile
- €25,200
- Median mileage
- 224,700 km
- Median first registration
- 2014
- Dealer share
- 52.2%
Check a listing
Prices by first registration
| First registration | Listings | Median price | Median mileage |
|---|---|---|---|
| 2016 | 11 | €22,300 | 243,824 km |
| 2015 | 24 | €22,900 | 217,000 km |
| 2014 | 25 | €20,850 | 204,000 km |
| 2013 | 28 | €20,500 | 230,000 km |
| 2012 | 4 | – | – |
Medians only for years with at least 5 listings. Many cars are first registered after production ends, so years can run past the build years.
Price history
| Month | Listings | Median price | Middle half | Median mileage |
|---|---|---|---|---|
| Nov 2026 | 92 | €21,800 | €19,000 – €25,200 | 224,700 km |
| Oct 2026 | 92 | €21,800 | €19,000 – €25,200 | 224,700 km |
Median asking price at the last snapshot of each month.
ADAC versions
All 1 ADAC versions
| Version | Power | Production years | Running cost per month |
|---|---|---|---|
| GL 350 CDI BlueTEC 4MATIC 7G-TRONIC PLUS | 258 PS | 2012–2015 | €772 |