In-depth reviews

Mercedes GLC SUV - MPG, running costs & CO2

The Mercedes GLC is actually quite economical given its size

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MPG, running costs & CO2 Rating

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The Mercedes GLC is pretty economical for an SUV, with its claimed figures rivalling the likes of the Audi Q5 and BMW X3. Mercedes also offers competitive warranty and servicing plans.

Mercedes GLC MPG & CO2

The 220 d version of the 2.0-litre diesel engine can return up to 45.6mpg, reducing slightly in top trims with optional wheels fitted. CO2 emissions of 175g/km mean it sits in the highest BiK band, which won’t appeal to company-car drivers. The more powerful GLC 300d is a shade less economical, at up to 42.8mpg, with emissions of 184g/km. By comparison, the BMW X3 xDrive 30d offers more pace and returns 46.3mpg with 159g/km.

Petrol engines are offered too. A GLC 300 model promises up to 33.6mpg, while the AMG 43 and 63 models above are even thirstier. They certainly prioritise speed over running costs; you can expect 26 and 22mpg respectively. All petrols are in the top BiK band.

A plug-in hybrid GLC 300 de version is now available, pairing the 2.0-litre diesel engine with a 13.5kWh battery. It offers 27 miles of electric range and up to 156.9mpg if you regularly recharge the battery, while business users will be drawn to its 12-13% BiK rate. It’s also exempt from the London Congestion Charge until October 2021. In 2021 it was joined by the GLC 300 e, with a petrol 2.0-litre engine and an electric range of 26-31 miles. It can officially manage up to 128.4mpg with emissions of 62g/km and it takes around 2.5 hours to charge the battery using a 7kW home wallbox. 

After the first year's CO2-based road tax (generally included in the on-the-road price), Mercedes GLCs cost £150 a year to tax, or £10 less if it's a hybrid. Every GLC now has a list price (including options) of more than £40,000, making it liable for an additional surcharge of £325 a year in years two to six, bringing the annual bill to £475 during that period.

Insurance

Insurance groups for the facelifted Mercedes GLC are quite high, with diesel versions starting in groups 32 and the GLC 300 de in groups 44-45 out of 50. Oddly, this is just as high as the AMG versions in groups 41-44.

Warranty

Mercedes provides a three-year/unlimited-mileage warranty on all of its new models, which is the same as BMW offers on the X3. Pan-European Mercedes Roadside Assistance is also included, that can last up to 30 years if you keep the car maintained within the dealership network.

Servicing

Mercedes offers fixed-price servicing plans that cover all scheduled maintenance. You can pay all in one go up front or spread the cost over monthly instalments, which should be about £35 for a diesel GLC.

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