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2022 Mercedes-Benz GLE — blower works on some speeds but not others

RustBeltTraveler721Community StarterMay 8, 20262022 Mercedes-Benz GLE 350 4MATICConnecticut
2022 Mercedes-Benz GLE 350 4MATIC, about 40,000 miles. Cabin fan works normally on certain settings and then cuts out or changes speed unpredictably on others.
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2023 Mercedes-Benz GLE GLE 350

$899/mo

Phoenix, AZ

20 replies

GarageNomad373Community StarterCommunity StarterMay 8, 2026permalink
I'd want a measurement, not a hunch. Two 2022 Mercedes-Benz GLEs can feel identical and have different causes, so measure before you copy someone else's repair. Don't erase codes until someone who can help has seen them. Run the total, not the monthly, before you commit. That's my plan before I call anyone.
RustBeltTraveler721Community StarterCommunity StarterMay 9, 2026permalink
It did benz gle — blower works on some twice this week, both times after sitting. No change in mileage feel. Might be overthinking it, but I'd rather overthink than overspend.
RustBeltTraveler721Community StarterCommunity StarterMay 8, 2026permalink
It did benz gle — blower works on some twice this week, both times after sitting. No change in mileage feel. If the story changes I'll post the new data.
UsedCarGarage59Community StarterCommunity StarterMay 8, 2026permalink
Start with the test that can prove you wrong. Loaded-suspension checks on the 2022 Mercedes-Benz GLE catch play that a wheels-hanging inspection misses. You'll know quickly if you're on the wrong tree. That's the whole play. Only after sitting overnight so far.
CanyonMom126Community StarterCommunity StarterMay 8, 2026permalink
Fair point. Counterpoint: Write temp, speed, and in-gear vs coast when the 2022 Mercedes-Benz GLE does it — then decide on parts. You'll know quickly if you're on the wrong tree. When does it actually happen? Happens in gear, not in park, for what that's worth.
QuietCollector76Community StarterCommunity StarterMay 8, 2026permalink
If it were in my driveway, get a real battery/charging test on the 2022 Mercedes-Benz GLE, not just resting voltage, before blaming a module. If the cheap test changes it, stop and reassess. Take it or leave it — that's what I'd do. If that fails I'll eat the diagnostic fee.
CanyonMom126Community StarterCommunity StarterMay 8, 2026permalink
Intermittent stuff lies if you only catch it once. Get a real battery/charging test on the 2022 Mercedes-Benz GLE, not just resting voltage, before blaming a module. That's the branch I'd chase this week. On “benz gle — blower works on some,” that was the fork that mattered for me. Have you gotten a second quote in writing? Not interested in a five-hour wait for a shrug.
BoxerPilot91Community StarterCommunity StarterMay 8, 2026permalink
Ask what changed right before it started. Swap the cheap/easy piece first on the 2022 Mercedes-Benz GLE and see if the fault moves. That's the branch I'd chase this week. Just my two cents from doing this recently. Make the next action something you can finish this week. I'll update if anything new shows up.
FlatSixFanCommunity StarterCommunity StarterMay 8, 2026permalink
Log the conditions before you spend. Loaded-suspension checks on the 2022 Mercedes-Benz GLE catch play that a wheels-hanging inspection misses. Don't erase codes until someone who can help has seen them. On “benz gle — blower works on some,” that was the fork that mattered for me. Do that first. If it repeats twice more I'll book time.
FlatSixFanCommunity StarterCommunity StarterMay 9, 2026permalink
Yes, with one caveat: If a shop can't duplicate it on the 2022 Mercedes-Benz GLE, bring a video plus freeze-frame data, not just a story. That's the branch I'd chase this week. This is from a 2022 Mercedes-Benz GLE in Connecticut with 40,000 miles. Do that first. I'd rather be boring and correct. Happens in gear, not in park, for what that's worth.
QuietCollector76Community StarterCommunity StarterMay 8, 2026permalink
I wouldn't throw parts yet. Write temp, speed, and in-gear vs coast when the 2022 Mercedes-Benz GLE does it — then decide on parts. That's the branch I'd chase this week. Just my two cents from doing this recently. No warning lights, which is why I'm documenting it.
DailyCommuter815Community StarterCommunity StarterMay 8, 2026permalink
I'd want a measurement, not a hunch. Write temp, speed, and in-gear vs coast when the 2022 Mercedes-Benz GLE does it — then decide on parts. You'll know quickly if you're on the wrong tree. Run the total, not the monthly, before you commit. Heat soak after errands is the other window.
RustBeltTraveler721Community StarterCommunity StarterMay 8, 2026permalink
OP update: scanned the 2022 Mercedes-Benz GLE again and still only have the one pending code, no new lights. Happens in gear, not in park, for what that's worth.
FlatSixFanCommunity StarterCommunity StarterMay 9, 2026permalink
I wouldn't throw parts yet. Loaded-suspension checks on the 2022 Mercedes-Benz GLE catch play that a wheels-hanging inspection misses. That's the branch I'd chase this week. Do that first. I've seen both outcomes, which is why I'd test instead of assume. Trying not to diagnose from the couch.
RustBeltTraveler721Community StarterCommunity StarterMay 9, 2026permalink
Cleared nothing. I want service to see the alert on the 2022 Mercedes-Benz GLE first. Might be overthinking it, but I'd rather overthink than overspend.
CanyonMiles540Community StarterCommunity StarterMay 10, 2026permalink
Same neighborhood, different next step: Capture voltage while the 2022 Mercedes-Benz GLE is actually failing — after it restarts you've lost the clue. If the cheap test changes it, stop and reassess. On “benz gle — blower works on some,” that was the fork that mattered for me. This is from a 2022 Mercedes-Benz GLE in Connecticut with 40,000 miles. Not gospel, but it saved me a headache. Climate here is different, so treat that as a local data point. Cold start is when I can actually reproduce it.
NewCarMechanicish876Community StarterCommunity StarterMay 9, 2026permalink
Ask what changed right before it started. Loaded-suspension checks on the 2022 Mercedes-Benz GLE catch play that a wheels-hanging inspection misses. You'll know quickly if you're on the wrong tree. Learned this the expensive way on a previous car. That's coming from doing this as an owner, not a shop. If the story changes I'll post the new data.
DailyCommuter815Community StarterCommunity StarterMay 9, 2026permalink
If it were in my driveway, move a coil or plug on the 2022 Mercedes-Benz GLE if it's cylinder-specific and see whether the code follows. That's the branch I'd chase this week. Run the total, not the monthly, before you commit. I'd rather be boring and correct. I already checked the easy fluid levels.
CanyonMiles540Community StarterCommunity StarterMay 9, 2026permalink
Log the conditions before you spend. If a shop can't duplicate it on the 2022 Mercedes-Benz GLE, bring a video plus freeze-frame data, not just a story. That's the branch I'd chase this week. On “benz gle — blower works on some,” that was the fork that mattered for me. Take it or leave it — that's what I'd do. Parking it somewhere I can hear it better next time.
RoadTripWrench299Community StarterCommunity StarterMay 9, 2026permalink
I wouldn't throw parts yet. Swap the cheap/easy piece first on the 2022 Mercedes-Benz GLE and see if the fault moves. That's the branch I'd chase this week. If it doesn't change the out-the-door or the repair estimate, it's noise. I'll poke at it this weekend.
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