2021 Mercedes-Benz GLB 250

Change year or car

Change year or car


starting MSRP

Key specs

Base trim shown


Body style


Combined MPG


Seating capacity

182.4” x 65.3”


Front-wheel drive



2 trims

Starting msrp listed lowest to highest price

Wondering which trim is right for you?

Our 2021 Mercedes-Benz GLB 250 trim comparison will help you decide.

See also: Find the best SUVs for 2024

Consumer reviews

Rating breakdown (out of 5):
  • Comfort 4.4
  • Interior 4.7
  • Performance 4.4
  • Value 3.8
  • Exterior 4.5
  • Reliability 3.9

Most recent consumer reviews


21 GLB cylinder head

15K miles the fuel filter issue, not a big deal but at just 21K miles (exactly 2 yrs old) and the cylinder head needs replacement. I leased this vehicle and will not be buying it as planned.


Four cylinders are not the way of the future

The engine blew at 26,000 miles. The bearings let loose. After seeing reviews online with other owners with the same motor, they’re all reporting a knock in the engine which is how this one started. Buyer beware if this car does not have a V6. The motor is too small to pull the weight or the company is cost cutting on the parts to operate the engine for its application I believe The lightweight four-cylinder motor is a way for Mercedes to save costs. However, the costs are transferred to the owner with a four-cylinder and repairs down the road. Most companies seem to be moving towards four cylinders in these larger cars and dependability down the road is the cost


My Cons

I love my GLB but two months and ten days, after the purchase, the engine needed a repair which was covered by the warranty. However, we were planning a lengthy trip and was thankful this did not occur while we were a few thousand miles from home. Me and My Mercedes are still trying to figure our communication out. I prefer Waz or Google Maps to their GPS system. Advance notifications of turns and such are better. Other than these issues I love driving her, Gilby.

See all 14 consumer reviews


New car and Certified Pre-Owned programs by Mercedes-Benz
New car program benefits
48 months/50,000 miles
48 months/50,000 miles
48 months/50,000 miles
Roadside assistance
48 months/50,000 miles
Certified Pre-Owned program benefits
Maximum age/mileage
6 years old or less/less than 75,000 miles
Basic warranty terms
1 year/unlimited miles
1 year/unlimited miles
Dealer certification required
164-point inspection
Roadside assistance
View all cpo program details

Have questions about warranties or CPO programs?

Compare the competitors