The Lemon Index

All cars · Mercedes-Benz GLK/GLC

2012 Mercedes-Benz GLK/GLC.

The 2012 Mercedes-Benz GLK/GLC is one of the most reliable years by owner complaints: 5 complaints in its first 3 years and a Lemon Index of 16, where 100 is the average car. Owners complain most about body structure, it has 0 recalls, and it gets 18 mpg combined. The best Mercedes-Benz GLK/GLC year is 2011.

16Lemon Index · 100 = average car

One of the most reliable. 6.2× fewer complaints than average.

Best year 2011 · Worst year 2016

Mercedes-Benz GLK/GLC
Photo shows a 2018 Mercedes-Benz GLK/GLC. Vauxford, Wikimedia Commons · CC BY-SA 4.0 · background removed

Before you buy. What matters most for this car.

Owner complaints5first 3 years
Fuel economy18 mpgcombined, EPA
Crash testnot ratedNHTSA

How serious. Out of 167 owner complaints, owners reported:

5crashes
3injuries
0fires
4tows

What owners complain about most. From owner complaints to the government.

body structure40%
tires20%
seats20%
speed control20%
electrical20%

Share of this year's owner complaints filed with NHTSA, not the share of cars that break. One complaint can name more than one area.

Transmission problems in every Mercedes-Benz GLK/GLC year →

When owners reported problems. From owner complaints to the government.

half by 44K
0K50K100K150K200K

Most owners who filed a complaint with NHTSA had 25K to 76K miles on the car (22 complaints listed the miles). This shows when people who had a problem reported it, not the odds that your car will have it.

Recalls 0

No safety recalls on record.

Recall repairs are free at any dealer. A recall only matters if it's still open on that exact car, so check its VIN.

Check a VIN for open recalls

Problems Mercedes-Benz told dealers about

Mercedes-Benz sent dealers 63 repair notes for this car. The ones about its biggest problems:

  • Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural…
  • Complaint Headlamps fogged or droplets forming
  • Complaint Washer fluid system leaks Cause Various possible causes: 1

Ask a seller or mechanic if these were done. Some are free under warranty or a special program.

Government investigations

  • OpenDesiccated air bag inflator rupture2021

NHTSA looks into a problem when enough owners report it. Many end in a recall.

Fuel cost and engines

About $4400 a year in fuel (EPA estimate). Engines: 3.5L 6-cyl.

In owners' words

While parking my car in a garage, it accelerated. Upon applying the brakes, it speeded up causing me to crash into a concrete barrier. Air bag did not deploy.

2012 Mercedes-Benz GLK/GLC owner · NHTSA complaint 10810779

Quick answers

Is the 2012 Mercedes-Benz GLK/GLC reliable?

Yes, it is one of the most reliable by government complaints. It drew 6.2× fewer complaints than average filed with NHTSA in its first 3 years, per car sold (Lemon Index 16; 100 is average, lower is better). The best Mercedes-Benz GLK/GLC year by this measure is 2011.

What are the most common 2012 Mercedes-Benz GLK/GLC problems?

In owner complaints to the government, the parts named most are body structure (40%), tires (20%) and seats (20%). That is the share of complaints, not the share of cars that break.

How many recalls does the 2012 Mercedes-Benz GLK/GLC have?

None: NHTSA has no safety recalls on record for it.

What gas mileage does the 2012 Mercedes-Benz GLK/GLC get?

18 mpg combined, depending on the engine (EPA estimate).

At what mileage do 2012 Mercedes-Benz GLK/GLC problems start?

Half of the owners who gave a mileage reported the problem between 25,000 and 76,200 miles. The middle report was at 44,600 miles, from 22 complaints.

Does the 2012 Mercedes-Benz GLK/GLC have transmission problems?

Transmission and drivetrain issues aren't among its top 5 complaint areas.

How much does the 2012 Mercedes-Benz GLK/GLC cost in fuel a year?

About $4400 a year, by the EPA's current estimate.

What engines does the 2012 Mercedes-Benz GLK/GLC have?

3.5L 6-cyl.

What Mercedes-Benz GLK/GLC year is better than the 2012?

By owner complaints per car sold, the best recent years are 2011, 2012 and 2013.

Lemon Index = safety complaints filed with the U.S. government (NHTSA) in a car's first 3 years, per car sold, against the average car of the same model year. 100 is average; lower is better. A complaint is an owner's report, not a confirmed defect. How it works

Updated

Free to use with credit: Source: The Lemon Index (lemonindex.com). Get the data