BestCarRank
Mercedes-Benz

2019 Mercedes-Benz GLS450

Problems, Recalls & Reliability Report

Excellent Reliability

Quick Summary

The 2019 Mercedes-Benz GLS450 has 7 owner complaints filed with NHTSA — that's 0.1x the segment average of 80. The most common issue is engine problems (14% of all complaints), specifically: driving on freeway at ̃75mph toward 202 w arizona freeway, dashboard showed a "engine malfunction + 48 v battery see operator's manual:. 1 minute later another error on screen saying, coolant off turn engine off. then the car lost the power in the middle lane off freeway. luckily no cars behin.

2 crash reports 4 injuries

7

Total Complaints

0

Recalls Issued

—/5

Safety Stars

0.1x

vs Segment Avg

Known Problems

ENGINE

1 complaints
14%
  • • DRIVING ON FREEWAY AT ̃75MPH TOWARD 202 W ARIZONA FREEWAY, DASHBOARD SHOWED A "ENGINE MALFUNCTION + 48 V BATTERY SEE OPERATOR'S MANUAL:. 1 MINUTE LATER ANOTHER ERROR ON SCREEN SAYING, COOLANT OFF TURN ENGINE OFF. THEN THE CAR LOST THE POWER IN THE MIDDLE LANE OFF FREEWAY. LUCKILY NO CARS BEHIN
Typical onset: 50K miles Est. repair: $500

“DRIVING ON FREEWAY AT ̃75MPH TOWARD 202 W ARIZONA FREEWAY, DASHBOARD SHOWED A "ENGINE MALFUNCTION + 48 V BATTERY SEE OPERATOR'S MANUAL:. 1 MINUTE LATER ANOTHER ERROR ON SCREEN SAYING, COOLANT OFF TURN ENGINE OFF. THEN THE CAR LOST THE POWER IN THE MIDDLE LANE OFF FREEWAY. LUCKILY NO CARS BEHIN”

— NHTSA complaint filing

ELECTRICAL

1 complaints
14%
  • • DRIVING ON FREEWAY AT ̃75MPH TOWARD 202 W ARIZONA FREEWAY, DASHBOARD SHOWED A "ENGINE MALFUNCTION + 48 V BATTERY SEE OPERATOR'S MANUAL:. 1 MINUTE LATER ANOTHER ERROR ON SCREEN SAYING, COOLANT OFF TURN ENGINE OFF. THEN THE CAR LOST THE POWER IN THE MIDDLE LANE OFF FREEWAY. LUCKILY NO CARS BEHIN
Typical onset: 50K miles Est. repair: $500

“DRIVING ON FREEWAY AT ̃75MPH TOWARD 202 W ARIZONA FREEWAY, DASHBOARD SHOWED A "ENGINE MALFUNCTION + 48 V BATTERY SEE OPERATOR'S MANUAL:. 1 MINUTE LATER ANOTHER ERROR ON SCREEN SAYING, COOLANT OFF TURN ENGINE OFF. THEN THE CAR LOST THE POWER IN THE MIDDLE LANE OFF FREEWAY. LUCKILY NO CARS BEHIN”

— NHTSA complaint filing

BRAKES

1 complaints
14%
  • • MERCEDES BENZ HAS GROSSLY MIS-REPRESENTED THE ACTIVE BRAKE SYSTEM FEATURE. THE OWNERS MANUAL LEAVES OUT A KEY ELEMENT, WHICH IS THAT THE DRIVERS FOOT NEEDS TO BE OFF THE PEDAL FOR THE FEATURE TO ACTIVATE. I.E. THE FEATURE WILL ONLY WORK WHEN THE DRIVER IS NOT PRESSING THE ACCELERATOR. THIS IS
Typical onset: 50K miles Est. repair: $500

“MERCEDES BENZ HAS GROSSLY MIS-REPRESENTED THE ACTIVE BRAKE SYSTEM FEATURE. THE OWNERS MANUAL LEAVES OUT A KEY ELEMENT, WHICH IS THAT THE DRIVERS FOOT NEEDS TO BE OFF THE PEDAL FOR THE FEATURE TO ACTIVATE. I.E. THE FEATURE WILL ONLY WORK WHEN THE DRIVER IS NOT PRESSING THE ACCELERATOR. THIS IS”

— NHTSA complaint filing

SPEED CONTROL

1 complaints
14%
  • • MERCEDES BENZ HAS GROSSLY MIS-REPRESENTED THE ACTIVE BRAKE SYSTEM FEATURE. THE OWNERS MANUAL LEAVES OUT A KEY ELEMENT, WHICH IS THAT THE DRIVERS FOOT NEEDS TO BE OFF THE PEDAL FOR THE FEATURE TO ACTIVATE. I.E. THE FEATURE WILL ONLY WORK WHEN THE DRIVER IS NOT PRESSING THE ACCELERATOR. THIS IS
Typical onset: 50K miles Est. repair: $500

“MERCEDES BENZ HAS GROSSLY MIS-REPRESENTED THE ACTIVE BRAKE SYSTEM FEATURE. THE OWNERS MANUAL LEAVES OUT A KEY ELEMENT, WHICH IS THAT THE DRIVERS FOOT NEEDS TO BE OFF THE PEDAL FOR THE FEATURE TO ACTIVATE. I.E. THE FEATURE WILL ONLY WORK WHEN THE DRIVER IS NOT PRESSING THE ACCELERATOR. THIS IS”

— NHTSA complaint filing

OTHER

1 complaints
14%
  • • I WAS DRIVING ON THE FREEWAY AND MY WINDSHIELD EXPLODED.
Typical onset: 50K miles Est. repair: $500

“I WAS DRIVING ON THE FREEWAY AND MY WINDSHIELD EXPLODED.”

— NHTSA complaint filing

Estimated Repair Costs

ENGINE(~50K mi)
$500
ELECTRICAL(~50K mi)
$500
BRAKES(~50K mi)
$500
SPEED CONTROL(~50K mi)
$500
OTHER(~50K mi)
$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 7 owner complaints for this specific year, here's what to check or ask about:

  • ☐
    ENGINE: DRIVING ON FREEWAY AT ̃75MPH TOWARD 202 W ARIZONA FREEWAY, DASHBOARD SHOWED A "ENGINE MALFUNCTION + 48 V BATTERY SEE OPERATOR'S MANUAL:. 1 MINUTE LATER ANOTHER ERROR ON SCREEN SAYING, COOLANT OFF TURN ENGINE OFF. THEN THE CAR LOST THE POWER IN THE MIDDLE LANE OFF FREEWAY. LUCKILY NO CARS BEHIN

    Typically appears around 50K miles. Repair cost ~$500

  • ☐
    ELECTRICAL: DRIVING ON FREEWAY AT ̃75MPH TOWARD 202 W ARIZONA FREEWAY, DASHBOARD SHOWED A "ENGINE MALFUNCTION + 48 V BATTERY SEE OPERATOR'S MANUAL:. 1 MINUTE LATER ANOTHER ERROR ON SCREEN SAYING, COOLANT OFF TURN ENGINE OFF. THEN THE CAR LOST THE POWER IN THE MIDDLE LANE OFF FREEWAY. LUCKILY NO CARS BEHIN

    Typically appears around 50K miles. Repair cost ~$500

  • ☐
    BRAKES: MERCEDES BENZ HAS GROSSLY MIS-REPRESENTED THE ACTIVE BRAKE SYSTEM FEATURE. THE OWNERS MANUAL LEAVES OUT A KEY ELEMENT, WHICH IS THAT THE DRIVERS FOOT NEEDS TO BE OFF THE PEDAL FOR THE FEATURE TO ACTIVATE. I.E. THE FEATURE WILL ONLY WORK WHEN THE DRIVER IS NOT PRESSING THE ACCELERATOR. THIS IS

    Typically appears around 50K miles. Repair cost ~$500

  • ☐
    SPEED CONTROL: MERCEDES BENZ HAS GROSSLY MIS-REPRESENTED THE ACTIVE BRAKE SYSTEM FEATURE. THE OWNERS MANUAL LEAVES OUT A KEY ELEMENT, WHICH IS THAT THE DRIVERS FOOT NEEDS TO BE OFF THE PEDAL FOR THE FEATURE TO ACTIVATE. I.E. THE FEATURE WILL ONLY WORK WHEN THE DRIVER IS NOT PRESSING THE ACCELERATOR. THIS IS

    Typically appears around 50K miles. Repair cost ~$500

  • ☐
    General: Get a pre-purchase inspection from an independent mechanic ($100-$200)

Mercedes-Benz GLS450 — Year Comparison

How does 2019 compare to other years? Fewer complaints = more reliable.

2021
41Above Average
2019
7Excellent Reliability
2017
51Average
Full years-to-avoid analysis →

NHTSA Safety Rating

No NHTSA safety rating available

At a Glance

Complaints
7
Recalls
0
Fire reports
0
Crash reports
2
Injury reports
4
Segment avg
80

Check a Specific VIN

See recalls for YOUR 2019 Mercedes-Benz GLS450

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