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2019 Mercedes Benz Cla Class Recalls, Issues & Maintenance

The 2019 Mercedes Benz Cla Class has no open NHTSA recalls. Owners report 7 recurring issue clusters, led by “Inadvertent shift to neutral 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.

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 2019 Mercedes Benz Cla Class.

Reported to NHTSA

Inadvertent shift to neutral while driving

POWER TRAIN

11 NHTSA complaints · 2019-08 → 2026-01

“The contact owns a 2019 Mercedes-Benz GLA 250. The contact stated that while driving at an undisclosed speed, the transmission inadvertently shifted to neutral(N), causing a loss of drive power”
— Owner report, NHTSA ODI #11708296
“I was driving my vehicle and it shifted into neutral and would not go back into gear until I pulled over to side of the road, turned it off and back on. A check engine light came on when I restarted the vehicle and I took the vehicle to the dealership for diagnosis”
— Owner report, NHTSA ODI #11703689

Read all complaints on NHTSA →

Crankcase ventilation failure

ENGINE

3 NHTSA complaints · 2024-08 → 2025-02

“Although I bought this 2019 Mercedes Benz CLA 250 less than 1 year ago with 18,600 miles on it, in May 2024 the check engine light came on and the dealer service shop gave the following diagnosis: CRANKCASE VENTILATION HOSE”
— Owner report, NHTSA ODI #11608608
“The contact owns a 2019 Mercedes-Benz GLA250. While the contact's wife was driving at an undisclosed speed, the check engine warning light illuminated. In addition, the contact stated that the vehicle was consuming an excessive amount of engine oil”
— Owner report, NHTSA ODI #11629045

Read all complaints on NHTSA →

Rear differential failure

POWER TRAIN

3 NHTSA complaints · 2024-03 → 2024-08

“The contact owns a 2019 Mercedes-Benz GLA250. The contact stated that while the vehicle was at the dealer for a routine oil change, the contact was informed that the differential was fractured. The dealer provided a cost for the repair however, the vehicle was not repaired”
— Owner report, NHTSA ODI #11577393
“In December 2023, the check engine light came on. The dealership said it was the rear differential. The dealership fixed the problem under warranty. In July 2024, the problem returned”
— Owner report, NHTSA ODI #11607211

Read all complaints on NHTSA →

Wheel rim cracking

WHEELS

3 NHTSA complaints · 2021-02 → 2023-12

“The rims of the Mercedes continually crack with moderate low speed driving. Has happened 4 to 5 times with under 50,000 miles, leaving me with constant flat tires, once on the George Washington bridge and once at night in a deserted area with zero warning”
— Owner report, NHTSA ODI #11558702
“The contact owns a 2019 Mercedes-Benz CLA250. The contact stated that on several occasions, several cracks were discovered on all four rims upon inspection. The vehicle was taken to an independent mechanic and the dealer, and the contact was informed”
— Owner report, NHTSA ODI #11553223

Read all complaints on NHTSA →

Recall repair part unavailability

ELECTRICAL SYSTEM, COMMUNICATION

4 NHTSA complaints · 2022-06 → 2022-07

“The contact owns a 2019 Mercedes Benz CLA250. The contact received a notification for NHTSA Campaign Number: 22V365000 (Electrical System, Communication) however, the part to do the recall repair was unavailable”
— Owner report, NHTSA ODI #11474756
“The active brake assist front radar sensor is defective. Mercedes Benz USA has failed to provide the part for repair even through the vehicle is only a few years old. They claim the parts on back order until April 2024, which is totally unacceptable”
— Owner report, NHTSA ODI #11475972

Read all complaints on NHTSA →

Fuel odor or leak from fuel rail

FUEL SYSTEM, GASOLINE

7 NHTSA complaints · 2024-01 → 2026-03

“To Whom It May Concern, I am writing to file a formal safety complaint regarding my 2019 Mercedes-Benz CLA250 involving a leaking fuel rail that caused the vehicle to shut down and become unsafe to operate. The failure of the fuel rail resulted in a fuel leak and engine shutdown”
— Owner report, NHTSA ODI #11723718
“The contact owns a 2019 Mercedes-Benz GLA250. The contact stated that while driving at various speeds, there was an abnormal fuel odor entering the cabin of the vehicle”
— Owner report, NHTSA ODI #11695763

Read all complaints on NHTSA →

Panoramic sunroof panel failure

STRUCTURE

5 NHTSA complaints · 2019-11 → 2026-02

“Structure body: roof and pillars affected Recall ID: 450977 year 2014- 2020 NHTSA campaign # 23v854000 Vehicle affected 2,976 A detached roof panel can become a road hazard, increasing the risk of a crash. The vehicle is making a loud noise from the panoramic soon roof”
— Owner report, NHTSA ODI #11685719
“TL* THE CONTACT OWNS A 2019 MERCEDES-BENZ CLA250. WHILE DRIVING 65-70 MPH, AN ABNORMAL EXPLOSIVE SOUND WAS HEARD. THE CONTACT NOTICED THAT THE SUN ROOF HAD EXPLODED. THERE WERE NO INJURIES. THE CONTACT STATED THAT THE SUN ROOF WAS NOT IMPACTED BY ROAD DEBRIS AT THE TIME”
— Owner report, NHTSA ODI #11279980

Read all complaints on NHTSA →

Issues on other model years

Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Sep 11, 2026. Investigation data refreshed Sep 11, 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)

1 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.

4

complaints mentioning a crash

0

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 2019 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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