Skip advert
Advertisement

Mercedes G-Class - Reliability and safety

The Mercedes G-Class’s material quality shines through, but the brand’s ownership experience takes away some of that gloss

Reliability and Safety rating

3.5

How we review cars
RRP
£139,305 £206,210
Find your Mercedes G-Class
Compare deals from trusted partners on this car and previous models.
Or are you looking to sell your car?
Value my car
Fast, no-nonsense car selling
Value my car

The latest Mercedes G-Class was crash-tested by Euro NCAP back in 2019, which is surprising considering its niche status. We’re happy to report that it earned a five-star rating, thanks to its strong construction, so the G-Class holds up well in the event of an impact. Adult occupants should fare well, too, with a 90 per cent score in this category.

Advertisement - Article continues below

Indeed, safety is one aspect of the G-Class that is much improved over the old model, with the latest car benefiting from a host of safety and assistance systems, some of which are optional on the more everyday SUVs and saloons. 

For example, the Assistance package comprises blind-spot assist and adaptive cruise control and would be an expensive option in other models. The G-Class also features active brake assist, multiple airbags, an i-Size child-seat attachment system for the outer rear seats, and the obvious traction benefits of four-wheel drive.

Mercedes finished a disappointing 25th out of a list of 32 car manufacturers in our 2024 Driver Power customer satisfaction survey, which is well below 14th-placed BMW or Land Rover, which came 10th.

Key standard safety featuresEuro NCAP safety ratings
  • Five-stars (Euro NCAP, 2019)
  • Adult occupant protection - 90%
  • Child occupant protection - 83%
  • Vulnerable road user protection - 78% 
  • Safety assist - 72%

Warranty

While some volume car manufacturers offer five and seven-year warranties, the G-Class is covered by a three-year guarantee, but at least there’s no mileage restriction. In comparison, Audi restricts its three-year warranty to 60,000 miles, although BMW’s cover is the same as Mercedes’. Extended warranties are also available.

The battery pack in the G 580 is covered by a separate eight-year or 62,000-mile warranty, and guarantees that the battery capacity won’t drop below 70 per cent in that time period.

Servicing

Service and maintenance of the G-Class won’t be cheap, but you can spread the cost by paying for a service plan on a monthly basis. The cost depends on the engine version you go for, and the number of miles you cover annually. You can choose a plan that covers two services taken over two years, three services over three years, or four over four years.

All versions need to be serviced every 15,500 miles or 12 months, whichever comes first.

Skip advert
Advertisement

New & used car deals

Mercedes G Class

Mercedes G Class

RRP £134,220Used from £105,000
Land Rover Range Rover

Land Rover Range Rover

RRP £105,675Avg. savings £7,125 off RRP*Used from £75,260
Land Rover Range Rover Sport
BMW X7

BMW X7

RRP £77,095Avg. savings £9,717 off RRP*Used from £49,532
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Have you considered?

New Range Rover Electric ride review: luxury EV could be worth the wait
Range Rover EV prototype - front

New Range Rover Electric ride review: luxury EV could be worth the wait

Road tests
24 Apr 2025
Range Rover review
Range Rover - main image

Range Rover review

In-depth reviews
3 Apr 2025
New BMW iX M70 review: a great EV just got even better
 BMW iX M70 - front

New BMW iX M70 review: a great EV just got even better

Road tests
4 Mar 2025

Most Popular

Chinese cars can’t match their European rivals when it comes to engineering
Opinion - Shanghai Auto Show

Chinese cars can’t match their European rivals when it comes to engineering

This new brand of cars might have battery tech on their side, but European buyers want much more than that
Opinion
25 Apr 2025
Leapmotor B05 family hatch on route to the UK with sub-£30k price and 400-mile range
Leapmotor badge

Leapmotor B05 family hatch on route to the UK with sub-£30k price and 400-mile range

The Stellantis-backed brand will launch a Volkswagen ID.3-rivalling small car with almost 20 per cent more range
News
23 Apr 2025
Buying a modern used car for under £10k is almost impossible
Opinion - £10k used cars

Buying a modern used car for under £10k is almost impossible

Phil McNamara discovers that it’s harder than ever to find a good-value car at the affordable end of the market
Opinion
24 Apr 2025