By clicking a retailer link you consent to third-party cookies that track your onward journey. This enables W? to receive an affiliate commission if you make a purchase, which supports our mission to be the UK's consumer champion.

Mercedes-BenzGLC (2015-2022)

Medium/Large SUV
Petrol/Diesel/Mild hybrid
Used only

£16,645Typical price

Test score

where to buy or sell

The version of this car that we've reviewed might not be available to buy through all listed retailer links. For more options, see our guides on where to buy a car and how to sell a car.

Sign up to unlock the full expert review

The GLC represented the first time Mercedes offered a mid-size SUV model in the UK. This four-wheel-drive car rivals the BMW X3 and Audi Q5 in the hugely popular crossover market. Does it distil the premium image and luxury ambience of Mercedes's bigger models into a smaller, easier-to-manage package? Read our full Mercedes GLC review to find out.

pros

Content has been blurred out, please log in to view.

cons

What's included?

What is it?
What’s it great at?
What’s it like to drive?
How reliable is the Mercedes-Benz GLC (2015 to 2022)?
How comfortable and spacious is it?
How economical is it to run?
How safe is it?
Is there anything I should look out for?
Should I buy it?

KEY TEST RESULTS
Comfort and practicality
Brand reliability 0-4 years

Dec 2024Last checked by Which?
May 2020First reviewed by Which?
Nov 2015Released

The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.

How we test cars

6 Jun 2025

Ease of driving

Overall
Visibility
Smoothness of power delivery
Driving stability
Cabin layout

How we test ease of driving

To find out how easy a car is to drive, we assess cars across a number of areas from visibility and handling to the layout of the cabin and how smoothly the engine delivers its power.

Performance

Overall
In-gear acceleration
Brakes

How we test performance

We test braking distances and whether the effectivess of the brakes fade with repeat use. Performanc is based on in-gear acceleration.

Comfort and practicality

Overall
Entry and exit
Seat comfort
Ride quality
Quietness
Seat space
Boot space (large cars, SUVs and MPVs)

How we test comfort and practicality

Comfort and practicality includes how easy it is, or not, to get in and out of the car and the maximum height of occupants. We also measure road, wind and engine noise and assess how well the car deals with bumps from large potholes to jittery surfaces like cobble stones.

Euro NCAP

How we test euro ncap

Any car that receives a rating of two stars or less from Euro NCAP is made a Don't Buy. Any car that receives three stars can't be a Best Buy. If a car has been available for more than four years and has not been tested by Euro NCAP, it cannot be a Best Buy.

Safety kit

How we test safety kit

We factor in the safety equipment that’s factory-fitted or optional, along with how well the car protects its occupants and pedestrians in the event of an accident. We also test how easy it is to fit a variety of child car seats.

Model reliability 5-9 years

How we test model reliability 5-9 years

How reliable this car is, based on the real life feedback of current owners as collected in our annual Which? car survey. We divide all reliability feedback into three age groups: cars aged up to four years, five to nine years, and 10 to 15 years.

Brand reliability 0-4 years

Overall
Electric car reliability
Plug-in hybrid reliability
Petrol reliability
Diesel reliability

How we test brand reliability 0-4 years

Our reliability ratings are based on the feedback from tens of thousands of UK motorists, as collected in our annual Which? car survey. We divide all reliability feedback into three age groups: cars aged up to four years, five to nine years, and 10 to 15 years.

Brand reliability 5-9 years

Overall
Diesel reliability

Brand reliability 10-15 years

Overall
Petrol reliability
Diesel reliability

General
Class	Medium/Large SUV
Luxury	Yes
Convertible	No
Availability	Used only
Used price	£16,645 - £33,600
Fuel type	Petrol/Diesel/Mild hybrid
Tested fuel efficiency	42.8 to 53.3mpg
Length	4,655 to 4,656mm
Width (excluding wing mirrors)	1,890mm
Width (including wing mirrors)	2,100mm
Height	1,639mm
Driver max height
Second-row passenger max height
Boot space with seats up
Boot space with seats down
Number of seats	5
Folding rear seats	Yes
Isofix attachments	Yes
Turning circle	11.75 m
On sale date	01 November 2015
Lowest pence-per-mile cost	£11.98

Latest tested engine
Engine and trim name	220d 4MATIC 9G-Tronic
Fuel type	Diesel
Capacity and power	2-litre (194hp)
Transmission	9-speed automatic
Driven wheels	Four-wheel-drive (4WD)
Fuel tank capacity	50 litres
Tested fuel economy: City / Out of town / Motorway (mpg)
Tested fuel economy: Combined (mpg)
Cost per mile	14.92p per mile
Cost of filling tank	£70
Monthly fuel cost
Annual fuel cost
NOx level	Extremely Low (trace)
CO level	Extremely Low (trace)
CO2 at tailpipe/tank-to-wheel (TTW) (g/km)	175
Official fuel economy: WLTP	40.9 to 47.9
Official Euro emission level	Euro 6d
Braked tow load (KG)	2500kg
Unbraked tow load (KG)	750kg
Engine test date	17 March 2020
Test programme	2017

Engine two
Engine and trim name	220d 4Matic 9g-tronic
Fuel	Diesel
Capacity and power	2.1-litre (170hp)
Transmission	9-speed automatic
Driven wheels	Four-wheel-drive (4WD)
Fuel tank capacity	50 litres
Tested fuel economy: City / Out of town / Motorway
Tested fuel economy: combined mpg
Cost per mile	13.33p per mile
Cost of filling tank	£70
Monthly fuel cost
Annual fuel cost
NOx level	Low
CO level	Very low
CO2 at tailpipe/tank-to-wheel (TTW) (g/km)	156
Official fuel economy: NEDC	56.5
Official Euro emission level	Euro 6b
Braked tow load (KG)	2500kg
Unbraked tow load (KG)	750kg
Engine test date	08 March 2018
Car test programme	2017

Engine three
Engine and trim name	250d 4Matic 9G-Tronic
Fuel type	Diesel
Capacity and power	2.1-litre (204hp)
Transmission	9-speed automatic
Driven wheels	All-wheel-drive (AWD)
Fuel tank capacity	50 litres
Tested fuel economy: City / Out of town / Motorway
Tested fuel economy: combined mpg
Cost per mile	11.98p per mile
Cost of filling tank	£70
Monthly fuel cost
Annual fuel cost
NOx level	Low
CO level	Low
CO2 at tailpipe/tank-to-wheel (TTW) (g/km)	140
Official Euro emission level	Euro 6b
Braked tow load (KG)	2500kg
Unbraked tow load (KG)	750kg
Engine test date	16 October 2015
Car test programme	2012-2016

Suggested Alternatives

BMW

X5 (2013-2018)

Medium/Large SUV
Petrol/Diesel/Mild hybrid
Used only

£12,885Typical price

Test score

Audi

Q5 (2008-2016)

Medium/Large SUV
Petrol/Diesel/Mild hybrid
Used only

£6,497Typical price

Test score

BMW

X5 (2007-2013)

Medium/Large SUV
Petrol/Diesel/Mild hybrid
Used only

£6,646Typical price

Test score

Best electric cars 2025
Our independent lab tests reveal the best electric cars with enough range to go the distance
How we test cars
Every car we review is subjected to hundreds of tests in our lab and on the road. Find out why you can trust our reviews, and how they help you choose the best car (and avoid the worst)
How to find cheap car insurance
Our 9-step guide to get cheaper car insurance quotes from price comparison sites and how to haggle with car insurance companies to save money

All new and used car advice

Suggested searches

Mercedes-BenzGLC (2015-2022)

where to buy or sell

Sign up to unlock the full expert review

pros

cons

What's included?

How we test cars

Ease of driving

Performance

Comfort and practicality

Euro NCAP

Safety kit

Model reliability 5-9 years

Brand reliability 0-4 years

Brand reliability 5-9 years

Brand reliability 10-15 years

How this product's score compares with other new and used cars we've tested

Suggested Alternatives

BMW

Audi

BMW

Related articles

Mercedes-BenzGLC (2015-2022)

where to buy or sell

pros

cons

What's included?

Test results

Specifications

Best Buys & Don't Buys

Suggested Alternatives

BMW

Audi

BMW

Related articles