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Mercedes-Benz AMG CLA45Model year report

2018 Mercedes-Benz AMG CLA45 Problems

Complaints
6filed with NHTSA
Median mileage
7,472miles, 2 complaints with mileage
Recalls
7campaigns on record
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA crash rating
—no overall rating published
EPA fuel economy
26 mpgcombined, 2.0L 4-cyl 4WD · 23 city / 30 hwy

Sources: NHTSA records for the 2018 Mercedes-Benz AMG CLA45 (complaints, recalls, investigations), EPA fuel economy. Report an error

NHTSA recorded 6 consumer complaints for the 2018 Mercedes-Benz AMG CLA45. The part named most often is engine, with 3 complaints (50% of the total), followed by other or unknown (3) and electrical system (2). 2 of the complaints include a mileage, and 100% of those were filed for vehicles with under 50,000 miles; the median is 7,472 miles. NHTSA lists 7 recall campaigns and 99 technical service bulletins for this model year. Engine complaints overlap with 1 technical service bulletin filed under the same part. Other or unknown complaints overlap with 5 technical service bulletins filed under the same part.

This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.

Which parts are reported most

Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.

Example complaints

Engine: “As I accelerated out of a left turn, the engine suddenly shut off, the transmission shifted into neutral, and the dash indicated that the vehicle was 'inoperable'. I pulled over and turned off the ignition. When I attempted to restart, the vehicle started with no issues.”

NHTSA complaint #11029885, filed 2017-09, 1,945 miles

Other or unknown: “Manufacturer has not fixed the outstanding software safety recall in a timely fashion. I have contacted them over 10 times and no one has any idea when the software update will be sent and there is no one they can escalate the issue to. I use the car for work, but I am not allowed to use a car with an outstanding safety recall.”

NHTSA complaint #11427487, filed 2021-08

Electrical system: “The contact owns a 2018 Mercedes-Benz AMG CLA45. The contact received notification of NHTSA Campaign Number: 21V058000 (Communication, Electrical System) however, the part to do the recall repair was unavailable. The dealer was notified of the issue however, the contact was informed that the part was not yet available. The manufacturer was notified of the recall. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had not experienced a failure. Parts distribution disconnect.”

NHTSA complaint #11433044, filed 2021-09

Transmission and drivetrain: “Accelerating out of a left turn, the car hesitated momentarily then the engine completely shut down in traffic. The dash indicated that the car had become inoperative, possibly due to the electronic stability program (esp) issue.”

NHTSA complaint #11149454, filed 2018-11, 13,000 miles

Mileage when problems were reported

100% of the 2 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 1,945 and 13,000 miles.

50%0–1050%10–250%25–500%50–750%75–1000%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (2 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 7,472 miles.

Complaints by year filed

Fewer than 15 complaints, too few for a reliable trend.

20172018202020213
Complaints by year the complaint was filed with NHTSA. Red bars: the last 3 full calendar years used for the trend. The current year (2026) is partial.

Fuel economy and running cost

EPA ratings for each 2018 Mercedes-Benz AMG CLA45 version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving).

VersionEngineTransmissionCityHwyComb.Fuel / yr
AMG CLA45 4matic 4WD2.0L 4-cyl7-speed automatic233026$3,150

Source: U.S. EPA and Department of Energy, fueleconomy.gov. Ratings are for comparing vehicles; real-world mileage varies with driving and conditions.

Recalls and investigations

See all 7 recalls for the 2018 Mercedes-Benz AMG CLA45 → · Check a VIN at nhtsa.gov/recalls

Technical service bulletins

TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 99 on record; the latest 10 are shown.

See all 99 bulletins →

Other model years of the Mercedes-Benz AMG CLA45

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
201867,4727—26—Not enough data
20141654,1175———Rising

All Mercedes-Benz AMG CLA45 model years

Frequently asked questions

How many NHTSA complaints does the 2018 Mercedes-Benz AMG CLA45 have?

NHTSA recorded 6 consumer complaints for the 2018 Mercedes-Benz AMG CLA45 as of Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2018 Mercedes-Benz AMG CLA45 is reported most often?

Engine is named most often, in 3 complaints (50% of the total), followed by other or unknown with 3.

Has the 2018 Mercedes-Benz AMG CLA45 been recalled?

NHTSA lists 7 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

What gas mileage does the 2018 Mercedes-Benz AMG CLA45 get?

The EPA rates the 2018 Mercedes-Benz AMG CLA45 (AMG CLA45 4matic, 2.0L 4-cyl) at 26 mpg combined, 23 city and 30 highway, with an estimated annual fuel cost of $3,150 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2018 Mercedes-Benz AMG CLA45 reported?

Among the 2 complaints that include a mileage, the median is 7,472 miles and the middle half falls between 1,945 and 13,000 miles; 100% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Fuel economy is from the EPA and DOE (fueleconomy.gov).

Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.