2016 Mercedes Benz Glc Class Recalls, Issues & Maintenance

The 2016 Mercedes Benz Glc Class has no open NHTSA recalls. Owners report 8 recurring issue clusters, led by “Brake squeal when reversing or in cold weather.” Mercedes-Benz alternates two service events: Service A (oil, filter, inspection) at roughly 10,000 miles or 1 year, then Service B (Service A plus brake fluid, cabin filter, and deeper checks) at roughly 20,000 miles or 2 years — the ASSYST Plus counter in the cluster tells you which is due. Oil must carry the MB-Approval number your engine specifies (commonly 229.5, or 229.71 for newer 0W-20 engines); 'meets or exceeds' marketing language is not an approval. Electric EQB and EQS models keep the A/B rhythm for inspections, brake fluid, and cabin filters — just without oil.

No open recalls on file. NHTSA lists no unrepaired safety recalls for this year, make and model. A recall can be issued at any time, and a specific car can still have one open — check yours by VIN at nhtsa.gov/recalls.

Known issues for this vehicle

What drivers and federal regulators have officially reported about the 2016 Mercedes Benz Glc Class.

Reported to NHTSA

Brake squeal when reversing or in cold weather

SERVICE BRAKES

28 NHTSA complaints · 2016-12 → 2023-01

PIERCING BRAKE SQUEAL WHEN APPLYING BRAKES UNDER ALL DRIVING CONDITIONS. PROBLEM ARISES AFTER OWNING BRAND NEW GLC300 FOR 8 MONTHS (10,000 MILES)
Owner report, NHTSA ODI #10944055
BRAKES HAVE GONE FROM SQUEAKING TO DEAFENING SQUEAL AND DO NOT SEEM TO STOP AS QUICKLY. VERY SPONGY. DEALER SAYS THEY WONT HAVE REPLACEMENT PARTS FOR MONTHS. CONCERNED WE SHOULDNT BE DRIVING THE CAR AND DONT TRUST THE DEALER TO BE TRUTHFUL
Owner report, NHTSA ODI #10936009
BRAKES SCREECH LOUDLY WHEN IN REVERSE CAUSING NOISE DISTURBANCE AND CONCERN ABOUT POSSIBLE SAFETY ISSUE. THIS HAS BEEN AN ON-GOING PROBLEM FOR SEVERAL MONTHS AND IS GETTING PROGRESSIVELY WORSE
Owner report, NHTSA ODI #11339756

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Positive crankcase ventilation valve failure

ENGINE

25 NHTSA complaints · 2019-10 → 2025-01

Got the MIL obd2 error code P052E - Positive Crankcase Ventilation Regulator Valve Performance. After some research this seems to be a common issue for this vehicle and other similar Mercedes Benz vehicles with the same engine
Owner report, NHTSA ODI #11496937
2016 GLC300 - Fault code P052E71 positive crankcase ventilation regulatory valve displayed on console. I reset code and it came up again in a few days
Owner report, NHTSA ODI #11510134
Faulty crankcase vent valve causing oil to leak into electrical lines of engine with car at 42,000 miles. This was confirmed by dealer
Owner report, NHTSA ODI #11469662

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Fuel odor in cabin from fuel line or rail leak

FUEL/PROPULSION SYSTEM

14 NHTSA complaints · 2016-04 → 2025-10

TL* THE CONTACT OWNS A 2016 MERCEDES-BENZ GLC300. THE CONTACT NOTICED A STRONG FUEL ODOR INSIDE AND OUTSIDE THE VEHICLE. THE FAILURE OCCURRED PERIODICALLY
Owner report, NHTSA ODI #11268937
FUEL SMELL ENTERING CABIN AFTER START UP, FUEL LINE ON DRIVERS SIDE NEAR STEERING COLUMN LEAKING, GOOGLED PROBLEM AND SEEMS TO BE COMMON OCCURRENCE WITH GLC300, AND MERCEDES C CLASS BUT NO RECALL,
Owner report, NHTSA ODI #11388519
ON COLD START (7AM, BETWEEN 60 AND 70F DEGREES), THERE'S A STRONG GAS SMELL ON BOTH THE CABIN AND OUTSIDE THE VEHICLE. NO CHECK ENGINE LIGHT IS ON OR ANY OTHER INDICATOR OF A FAILURE
Owner report, NHTSA ODI #11151231

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Panoramic sunroof panel detachment or shattering

STRUCTURE

10 NHTSA complaints · 2016-06 → 2026-06

AT 7:30 AM ON JUNE 10, 2016, WHILE DRIVING NORTH ON RTE. 495 IN DELAWARE IN OUR 5-MONTH-OLD MB - GLC 300, THE PANORAMIC SUNROOF SUDDENLY AND WITHOUT ANY WARNING EXPLODED AND SHATTERED OUTWARD. THE SOUND WAS AS LOUD AS A BOMB
Owner report, NHTSA ODI #10874285
PANORAMIC SUNROOF SHATTERED AND EXPLODED WITHOUT WARNING, WITHOUT ANY EXTERNAL IMPACT SEEN, FELT OR HEARD. VEHICLE WAS MOVING ON RURAL HIGHWAY (FLAT FARMLAND) AROUND 55-60 MPH
Owner report, NHTSA ODI #11056986
Was driving down the highway a the panel between the windshield and panoramic sunroof detached a flew off. Other models are included in this same recall but my make and model are not
Owner report, NHTSA ODI #11747561

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Starting current limiter recall repair delay

ELECTRICAL SYSTEM, ENGINE

11 NHTSA complaints · 2017-03 → 2017-09

A RECALL WAS ISSUED ON MY VEHICLE 4 MONTHS AGO AND THE DEALER AND MANUFACTURER ARE STILL STATING THAT THEY DO NOT HAVE THE PART TO PROPERLY REPAIR THE VEHICLE. THEIR NOTICE STATES THAT THERE IS A CONCERN THAT OVERHEATING OF THE STARTING CURRENT LIMITER
Owner report, NHTSA ODI #10992843
I RECEIVED A RECALL NOTICE FROM MERCEDES IN MARCH 2017 STATING THAT THE STARTING LIMITER MAY OVERHEAT RESULTING IN FIRE. AS OF THIS DATE, JULY 13, 2017, MERCEDES HAS NO IDEA WHEN IT WILL HAVE THE PART (S). THIS IS UNACCEPTABLE
Owner report, NHTSA ODI #11005138
TL* THE CONTACT OWNS A 2016 MERCEDES BENZ GLC300. THE CONTACT STATED THAT WHILE DRIVING AT 40 MPH, THERE WAS AN ABNORMAL BURNING ODOR COMING FROM THE VEHICLE AS THE CHECK ENGINE WARNING LIGHT ILLUMINATED THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED
Owner report, NHTSA ODI #10971793

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Engine piston or camshaft failure requiring replacement

ENGINE

8 NHTSA complaints · 2016-07 → 2024-10

I lost power on while driving at speed and almost got rear-ended before pulling over. I had to tow the car to a mechanic. After diagnosis it turned out the pistons are cracked and had to be replaced as well as the rod bearings
Owner report, NHTSA ODI #11541304
The contact owns a 2016 Mercedes-Benz GLC300. The contact stated that while driving 45-50 MPH, the engine experienced rough idling and the vehicle was shaking violently. Several unknown warning lights were illuminated
Owner report, NHTSA ODI #11617878
AT 40,000 MILES, ONE OF THE WRIST PINS SNAPPED AND THE PISTON BROKE OFF. THIS CAUSED COMPLETE ENGINE FAILURE AND THE WHOLE ENGINE NEEDS TO BE REPLACED. THIS IS THE SAME PROBLEM THAT CAUSED A RECALL WITH THE 2015 MODEL
Owner report, NHTSA ODI #11416454

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Takata airbag recall parts unavailability

AIR BAGS

7 NHTSA complaints · 2017-11 → 2018-03

TL* TAKATA RECALL. THE CONTACT OWNS A 2016 MERCEDES-BENZ GLC300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V627000 (AIR BAGS) AND STATED THAT THE PART WAS NOT AVAILABLE WITHIN A REASONABLE TIME FRAME TO SCHEDULE THE RECALL REPAIR
Owner report, NHTSA ODI #11065860
TAKATA RECALL MY WIFE IS AFRAID TO DRIVE THE CAR AFTER HEARING ABOUT THE RECALL. LOCAL MERCEDES DEALER IS NOT ABLE TO DO ANYTHING AT THIS TIME. WE ARE FRUSTRATED BECAUSE WE CHOSE TO PURCHASE THIS CAR MAINLY BECAUSE OF ITS SAFETY RECORD
Owner report, NHTSA ODI #11048262
THE RECALL NOTIFICATION IS DATED OCTOBER 6, 2017 AND ON THIS DATE, 1/19/18 THERE IS STILL NO INFORMATION WHEN THE REPAIRS WILL BE DONE. THIS PRESENTS A HARDSHIP WHEN TRYING TO TRADE-IN OR SELL AN AFFECTED VEHICLE SINCE SOME DEALERSHIPS WILL EITHER NOT ACCEPT IT
Owner report, NHTSA ODI #11063823

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Unintended acceleration with loss of braking

VEHICLE SPEED CONTROL

4 NHTSA complaints · 2017-09 → 2022-02

The contact owns a 2016 Mercedes-Benz GLC300W. The contact stated while driving at 65 mph the vehicle went through a sudden acceleration and then slowed down to about 65 mph. The contact stated no warning lights were
Owner report, NHTSA ODI #11453712
TL* THE CONTACT OWNS A 2016 MERCEDES-BENZ GLC300W. WHILE MAKING A RIGHT TURN TO PARK, THE VEHICLE ACCELERATED AUTOMATICALLY AND CRASHED INTO A BUILDING. THE CONTACT STATED THAT THE BRAKES FAILED TO STOP THE VEHICLE
Owner report, NHTSA ODI #11193090
TL* THE CONTACT OWNS A 2016 MERCEDES-BENZ GLC300. WHILE DRIVING 5 MPH, THE BRAKES MALFUNCTIONED WITHOUT WARNING. THE CONTACT DEPRESSED THE BRAKE PEDAL AND THE VEHICLE SURGED FORWARD INDEPENDENTLY. AS A RESULT, THE VEHICLE CRASHED INTO THE CONTACT'S BARN
Owner report, NHTSA ODI #11022721

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Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Sep 13, 2026. Investigation data refreshed Sep 13, 2026.

We display NHTSA's record with attribution; we don't editorialize on what these complaints mean for any specific vehicle.

Essential maintenance

Critical for safety and preventing major damage

Service A — Oil & Filter + Inspection

Every 10,000 mi

Every 10,000 miles or 12 months: oil and filter with MB-Approved oil, fluid top-offs, tire check, and inspection. AMG models driven hard: many owners service at 5,000-7,500 miles.

Estimated cost — typical U.S. ranges

Dealer

~$120–$160

Shop

~$85–$115

DIY

~$25–$55

Full synthetic costs more than conventional. 5-quart 0W-20 + filter is the typical bill.

Service B — Major Inspection

Every 20,000 mi

Every 20,000 miles or 2 years, alternating with Service A: everything in A plus brake-fluid replacement, cabin filter, and a deeper multi-point inspection of brakes, suspension, and driveline.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Most shops do this free with any paid service. A flashlight and 10 minutes covers the basics yourself.

Tire Rotation

Every 10,000 mi

Rotate at every Service A where the tire sizes allow. Many AMG and 4MATIC+ models run staggered widths that can't rotate front-to-rear — check your spec before paying for a rotation.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Often free at the shop where you bought the tires — worth asking before paying.

Brake Inspection

Every 10,000 mi

Checked at every A/B service via electronic pad-wear sensors. Replace sensors with pads. Heavy EQS models wear pads slowly (regen braking) but rotors can corrode from disuse — an inspection catches that.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Most shops do this free as a courtesy with any service. Don't pay separately if you can avoid it.

Brake Fluid

Every 20,000 mi

Replaced every 2 years as part of Service B — Mercedes schedules it on time, not miles, because DOT 4 fluid absorbs moisture regardless of driving.

Estimated cost — typical U.S. ranges

Dealer

~$180–$200

Shop

~$125–$140

DIY

~$10–$25

DOT 3 or 4 — match the cap. Vacuum bleeders make this a one-person DIY.

Important maintenance

Keeps your vehicle running smoothly and efficiently

Automatic Transmission Fluid (7G / 9G-Tronic)

Every 70,000 mi

Mercedes specifies fluid and filter service around 70,000 miles on most 7G- and 9G-Tronic gearboxes — check your year's sheet. Use only the MB-spec fluid for your transmission code; independent specialists often service at 60,000 on hard-driven cars.

Estimated cost — typical U.S. ranges

Dealer

~$330–$500

Shop

~$235–$355

DIY

~$60–$180

Some sealed transmissions have no dipstick — fill is precise and best left to a shop. Many drivers can still DIY drain-and-fill.

Spark Plugs

Every 60,000 mi

Most modern MB gas engines: plugs around 60,000 miles — AMG engines often sooner. Check your engine's sheet; twin-turbo V8 plug jobs are labor-heavy, so pair with other scheduled work.

Estimated cost — typical U.S. ranges

Dealer

~$285–$390

Shop

~$200–$275

DIY

~$25–$100

Iridium plugs cost more but last 100k+ miles. V6/V8 access varies wildly — some are tough.

Engine Air Filter

Every 40,000 mi

Replace around every 40,000 miles (twin-filter setups on V6/V8 engines double the parts bill). Inspected at every Service B.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

5-minute job on most cars; the airbox lid usually has clips, no tools needed.

Recommended maintenance

Extends the life of your vehicle and improves comfort

Combination / Dust Filter

Every 20,000 mi

Replaced with every Service B. Models with the ENERGIZING air package use a higher-grade filter — priced accordingly.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

Usually behind the glovebox. Shops charge labor for a 10-minute job — easy DIY win.

Engine Coolant

On condition / lifetime

MB-spec coolant is long-life (typically ~10 years / 150,000 miles on the sheet). Refresh only with MB 325/326-spec coolant — the wrong chemistry attacks aluminum and head gaskets.

Estimated cost — typical U.S. ranges

Dealer

~$285–$330

Shop

~$200–$235

DIY

~$25–$60

Use the manufacturer-specified coolant — wrong color/chemistry can damage the cooling system.

12V & Auxiliary Battery

Every 25,000 mi

Test annually after year 3. Most modern Mercedes carry a second auxiliary battery; a weak one triggers cascading warning messages long before a no-start. EQ models also depend on the 12V system to boot.

Estimated cost — typical U.S. ranges

Dealer

~$225–$390

Shop

~$160–$280

DIY

~$130–$250

Most auto-parts stores test and install batteries free with purchase. Skip the dealer markup.

Fatal crash history & reported problems

Occupant deaths in fatal crashes (FARS)

5 crashes 2010–2024

FARS counts every occupant death in a fatal crash, whatever the cause — it does not mean the vehicle was at fault or defective. Counts are not adjusted for how many of each vehicle are on the road. How to read this number

Owner-reported problem signals

Separate from the federal fatality data above: complaints owners filed with NHTSA about this year and model. These are reports of problems, unverified, and are counted here only as signals.

10

complaints mentioning a crash

2

complaints mentioning a fire

Reviewed known issues for this vehicle

Typical U.S. ranges. Actual quotes vary by shop, parts choice, and vehicle condition.

How we estimate: Dealer = OEM parts × 1.4 + labor × $165/hr. Shop = parts + labor × $115/hr. DIY = parts only.

This maintenance schedule for the 2016 Mercedes Benz Glc Class reflects Mercedes-Benz's published service intervals and the ASSYST Plus (Service A / Service B) system. Your actual service needs may vary based on driving conditions, climate, and vehicle usage. Always consult your owner's manual for model-specific recommendations.