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2015 Mercedes-Benz CLA-Class Recalls, Problems & Maintenance

The 2015 Mercedes-Benz CLA-Class has no open NHTSA recalls. Owners report 8 recurring issue clusters, led by “Panoramic sunroof shattering or detaching while driving.” 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.

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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 & problems for this vehicle

What drivers and federal regulators have officially reported about the 2015 Mercedes-Benz CLA-Class.

Reported to NHTSA

Panoramic sunroof shattering or detaching while driving

STRUCTURE

27 NHTSA complaints · 2017-07 → 2025-11

“The contact owns a 2015 Mercedes-Benz GLA250. The contact stated that the roof panel had detached and was tilted. The vehicle was taken to the dealer, where an estimate for the repair was provided”
— Owner report, NHTSA ODI #11700522
“I was driving to work on Thursday, September 11th. Suddenly, I heard a loud noise like an explosion. Upon checking, I saw that my sunroof had exploded, shattering glass everywhere”
— Owner report, NHTSA ODI #11687298
“The contact owns a 2015 Mercedes-Benz GLA250. The contact stated that while driving at 60 MPH, she heard an abnormal gunshot-like sound coming from the vehicle”
— Owner report, NHTSA ODI #11446121

Read all complaints on NHTSA →

Crankcase ventilation valve check engine code P052E

ENGINE

21 NHTSA complaints · 2023-10 → 2025-10

“The contact owns a 2015 Mercedes-Benz GLA 250. The contact stated that occasionally, while driving at various speeds, the vehicle experienced a loss of automotive power”
— Owner report, NHTSA ODI #11679767
“There was a recent extended warranty issued by Mercedes-Benz to repair certain vehicle models free of charge that have a check engine light code P052E”
— Owner report, NHTSA ODI #11617709
“We own a 2015 Mercedes GLA. There has been a voluntary extended warranty due to a known issue on their end for years with this very expensive fix on low mileage cars”
— Owner report, NHTSA ODI #11548401

Read all complaints on NHTSA →

Rear subframe corrosion and rear suspension failure

SUSPENSION

3 NHTSA complaints · 2025-02 → 2025-11

“The contact owns a 2015 Mercedes-Benz GLA250. While the contact's daughter was driving at an undisclosed speed, the rear suspension collapsed”
— Owner report, NHTSA ODI #11699420
“Mercedes repair shop inspected this car and stated that there is rear-subframe rusting and corrosion. Repair shop states that this is a safety issue”
— Owner report, NHTSA ODI #11695495
“Mercedes subframes that prematurely rust or deteriorate. Mercedes has extended warranty for the mentioned parts on some models”
— Owner report, NHTSA ODI #11645299

Read all complaints on NHTSA →

Tire sidewall tearing and blowout

TIRES

3 NHTSA complaints · 2018-03 → 2023-05

“Normal driving, daily driver. The rubber around the inner and outer sidewalls seems soft and tears easily. I have a matching set of these tires on my car, same brand and type, 4 altogether”
— Owner report, NHTSA ODI #11523578
“The contact owns a 2015 Mercedes-Benz GLA250. The contact stated that while the vehicle was parked, there was a loud explosion and she noticed that the front passenger’s side tire had exploded, causing the front passenger’s side headlamp to fracture”
— Owner report, NHTSA ODI #11457230
“ALL 4 TIRES HAVE BLOWN OUT, SOMETHING IS WRONG WITH THIS VEHICLE. I HAVE NEVER HIT ANYTHING TO MAKE THEM BLOW, JUST NORMAL CAREFUL DRIVING”
— Owner report, NHTSA ODI #11080990

Read all complaints on NHTSA →

Transmission shifting to neutral while driving

POWER TRAIN

15 NHTSA complaints · 2015-12 → 2025-02

“Car randomly shifts to neutral, displays message : "reverse not available" or "transmission malfunction". Car rapidly slows down causing cars behind to make avoidance maneuvers”
— Owner report, NHTSA ODI #11549868
“WHILE DRIVING AND WITHOUT WARNING, THE CAR SHIFTED ITSELF INTO NEUTRAL AND DISPLAYED THE FOLLOWING ERROR MESSAGE: "TRANSMISSION MALFUNCTION STOP."”
— Owner report, NHTSA ODI #11128815
“In November 2024, while at a stop, the car shut off. A few weeks later, while driving the car over speed tables/humps, the car shifted from drive into neutral”
— Owner report, NHTSA ODI #11643769

Read all complaints on NHTSA →

Collision Prevention Assist false activation

FORWARD COLLISION AVOIDANCE

11 NHTSA complaints · 2017-12 → 2026-02

“Had an update on the software to control collision prevention on the car, and soon afterward it began to deploy at certain spots without any other car in front for at least 50 feet”
— Owner report, NHTSA ODI #11499518
“IMMEDIATELY AFTER ENTERING A FREEWAY FROM AN ON-RAMP AT APPROXIMATELY 60MPH, WARNING CHIMES FOR COLLISION INDICATOR DEACTIVATED CAME ON, AUTO-DAMPENING OF ENGINE SPEED OCCURRED, AND AUTO-BRAKING OCCURRED”
— Owner report, NHTSA ODI #11057296
“I HAVE 2015 CLA250 COLLISION PREVENTION ASSIST DOSE NOT WORK AND IT’S ALWAYS ON AS ALARM ON MY DASHBOARD AFTER I SEARCH TOO MANY PEOPLE HAVE SAME ISSUES”
— Owner report, NHTSA ODI #11218893

Read all complaints on NHTSA →

Takata air bag recall parts unavailable

AIR BAGS

10 NHTSA complaints · 2017-11 → 2020-09

“I RECEIVED A SAFETY RECALL NOTICE FROM MERCEDES-BENZ IN FEBRUARY 2019 FOR THE PASSENGER-SIDE AIRBAG (SEE ATTACHED COPY)”
— Owner report, NHTSA ODI #11360990
“SINCE OCTOBER, THEY HAVE NOT TAKEN ANY INITIATIVE TO REPAIR OR GATHER THE PARTS TO MAKE THE REPAIR AND I'VE BEEN FEARFUL TO EVEN DRIVE IT”
— Owner report, NHTSA ODI #11066541
“TL* TAKATA RECALL. THE CONTACT OWNS A 2015 MERCEDES-BENZ CLA250. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V010000 (AIR BAGS)”
— Owner report, NHTSA ODI #11242138

Read all complaints on NHTSA →

Air bag failure to deploy or unintended deployment

AIR BAGS

8 NHTSA complaints · 2017-11 → 2026-02

“I came out from work. Got in my car and started it and went to make a three-point turn to go the opposite direction on a quiet back street in the airbag deployed halfway through and blew up in my face, causing my hands to be hurt and difficulty with breathing”
— Owner report, NHTSA ODI #11716914
“TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ CLA250. WHILE DRIVING APPROXIMATELY 40 MPH, THE CONTACT NOTICED A CONSTRUCTION SITE ON THE SIDE OF THE ROAD AND A WOODEN LIGHT POLE IN THE MIDDLE OF THE ROAD”
— Owner report, NHTSA ODI #11094135
“I STARTED THE CAR AND I GOT A MESSAGE STATING THE RIGHT FRONT AIR BAG MALFUNCTIONED. THERE IS A SHORT”
— Owner report, NHTSA ODI #11162549

Read all complaints on NHTSA →

Issues on other model years

Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Sep 20, 2026. Investigation data refreshed Sep 20, 2026.

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

Raw data + downloads for this 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)

15 crashes 1990–2024

How the 15 occupant deaths break down

10

driver deaths

5

passenger deaths

15

occupant deaths

Crash years covered: 1990–2024 This model year first appears in 2015 crashes. Older models have had more years on the road to appear in these crashes, so a higher count here does not by itself mean a vehicle is less safe.

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

FARS 2024 data is an annual report file. NHTSA revises these records when the final file is published, so this count can change.

Why we show driver deaths too

Every vehicle has exactly one driver seat, so driver deaths line up fairly when you compare one model to another. Occupant deaths include passengers, so a three row SUV can show a higher number than a two seat car simply because it carries more people.

Both figures are plain counts, not rates. A rate would need to know how many of each vehicle are on the road, and that registration data is not public, so we do not publish rates or scores of any kind.

IIHS publishes driver death rates using this same driver only idea, paired with a registered vehicle years denominator we do not have. Their rates and these counts answer different questions, so do not read either number here as a safety rating.

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.

9

complaints mentioning a crash

1

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 2015 Mercedes-Benz CLA-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.

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