"Is the Gle 350d reliable, and what should you check?"
When buying a used Mercedes-Benz GLE 350d 2017 (166/292), the most frequently mentioned issue is oil leaks and consumption (heat exchanger/gaskets). Clogged DPF and difficult regenerations are also commonly reported.
Engine: OM642
OM642.826 · diesel · 350d · Used in this car from 2015-2018
Strengths
High service life with proper maintenance
Provides excellent vehicle dynamics
Watch-outs
Intake swirl flaps jam
Oil leaks quite common
Short-lived membrane of crankcase ventilation valve
Known engine issues
Oil cooler leaksThe most known problem of this diesel is oil cooler gasket leaks. Since the cooler is located in the V of the engine, replacing the cheap gaskets is expensive. Around 2010 the design was revised and such leaks no longer occur.
Fuel system issuesThe engine uses a reliable Bosch Common Rail fuel system, but its piezo injectors are very sensitive to fuel quality and expensive. Also, regular failures of the fuel quantity control valve in the high-pressure pump are noted.
Swirl flap problemsThe intake manifold has steel swirl flaps, but they are actuated by a servo with plastic rods that often break. The problem is worsened by intake clogging due to a weak crankcase ventilation membrane.
Listed from most frequently reported, each with its source.
Oil leaks and consumption (heat exchanger/gaskets)
Often reported
On the OM642 engine, oil leaks can develop from oil/water heat exchanger gaskets, O-rings, and worn seals; some cases report higher than normal oil consumption.
Engine Bay
Clogged DPF and difficult regenerations
Often reported
The diesel particulate filter (DPF) can clog, especially with frequent short trips or city driving; this may cause dashboard warnings, incomplete regenerations, and error code P2002.
Exhaust Emissions
Clogged or faulty EGR valve
Often reported
The EGR valve on the V6 OM642 engine often clogs due to carbon buildup, causing power loss and the check engine light to come on.
Exhaust Emissions
Turbocharger failures
Often reported
Turbocharger failure (actuator, bearing play, or oil leak on exhaust/intake side) is reported, causing boost loss, exhaust smoke, and low turbo pressure error codes.
Turbo
Mercedes-Benz Gle 350d technical specs
Mercedes-Benz Gle 350d (2017): boot 690 L; fuel use 6,6 l/100 km (urban 7,3 l/100 km · extra-urban 6,2 l/100 km); 0–100 in 7.1 s.
Boot capacity
690 L
Fuel consumption
6,6 l/100 km (urban 7,3 l/100 km · extra-urban 6,2 l/100 km)
What should I look for when buying a Mercedes-Benz GLE 350d?+
When buying a 2017 350d, check the service history, test drive, and look for engine/transmission warnings. The most commonly reported issues are: oil leaks and consumption (heat exchanger/gaskets); clogged DPF and difficult regenerations; clogged or faulty EGR valve.
What are the chronic problems of the Mercedes-Benz GLE 350d?+
The most commonly reported issues are: oil leaks and consumption (heat exchanger/gaskets); clogged DPF and difficult regenerations; clogged or faulty EGR valve.
Is the Mercedes-Benz GLE 350d reliable?+
Rather than a simple yes/no, it's important to weigh the proven pros and cons. This page lists 4 verified findings.
How does Carbeak collect data?+
The cards on this page are derived from the Difetti fault database; brand, fuel, engine, and generation compatibility between the source and target vehicle are verified. Topics with insufficient evidence are not shown.