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Mercedes Benz Gla Service Schedule & Costs

Every service item for the Mercedes Benz Gla — what needs doing, when, and what it should cost at an independent garage versus a main dealer.

X156 (2014–2020)GLA 200, GLA 250, GLA 220 CDI/d

Mercedes Benz Gla service: key facts

Routine service items

These are the items covered in a standard service. Most garages include oil, oil filter and a basic inspection. The rest are typically checked or replaced on a schedule.

Service itemIntervalTypical cost
Engine oil and filter
Mercedes ASSYST service indicator typically shows 15,500 miles or 1 year.
X156
15,500 miles or 1 year
£120–£180
Dealer: £200–£300
Air filter
Mercedes schedule shows 2 years or 31,000 miles.
X156
31,000 miles or 2 years
£25–£45
Dealer: £50–£80
Cabin pollen filter
Annual replacement recommended.
X156
15,500 miles or 1 year
£40–£70
Dealer: £70–£110
Fuel filter
4 years or 62,000 miles on diesel variants. In-tank filter on most variants. Blocked filter causes loss of power and rough running. More frequent changes needed with poor quality diesel fuel.
X156
62,000 miles or 4 years
£80–£140
Dealer: £150–£250

Major service items

These are the big-ticket items. Miss them and you risk engine or gearbox damage. The costs are higher but the consequences of skipping are much worse.

Service itemIntervalTypical cost
Automatic transmission fluid
Mercedes claims lifetime fill but specialists recommend 78,000 mile changes on 7G-DCT dual-clutch and 9G-Tronic automatics.
X156
78,000 miles or 6 years
£200–£300
Dealer: £350–£550

Periodic maintenance

Items that don't need doing at every service but should be on your radar at the right mileage or age.

Service itemIntervalTypical cost
Spark plugs
Mercedes schedule shows 4 years or 62,000 miles for petrol engines.
X156
62,000 miles or 4 years
£80–£140
Dealer: £140–£220
Brake fluid
2 years regardless of mileage.
X156
2 years
£60–£100
Dealer: £90–£150
Coolant flush
Mercedes schedule shows 6 years or 93,000 miles.
X156
93,000 miles or 6 years
£120–£180
Dealer: £200–£300

Known issues to watch for

The most common problems reported on the Mercedes Benz Gla, ranked by severity.

major
Excessive brake fluid consumption
The GLA shows abnormally high rates of brake fluid falling below minimum levels, with MOT data showing failures at 9.5x the fleet average on some variants.
minor
Suspension joint dust cover deterioration
The GLA suffers premature deterioration of suspension joint dust covers, with failures at 7.8x the fleet average.
minor
Premature brake pad wear
MOT data shows the GLA reaches brake pad wear indicators at 6.6x the fleet average, particularly on 1.6L petrol variants at low mileage.
minor
Engine management light (diesel variants)
The 2.1L diesel GLA shows engine management light failures at This typically indicates emissions system faults such as EGR valve carbon build-up, DPF regeneration problems, or lambda sensor failures.

1 more known issues tracked. Check a specific car's history to see what matters for its age and mileage.

Check a Mercedes Benz Gla's service history

Enter a reg to see franchised dealer service records — dates, mileage, and work done at every visit.

Check service history

£6.99 · Full refund if no records found

Related

Mercedes Benz Gla service FAQs

How often should a Mercedes Benz Gla be serviced?

A Mercedes Benz Gla should have an oil service every 15,500 miles or 1 year, whichever comes first. Mercedes ASSYST service indicator typically shows 15,500 miles or 1 year.

How much does a Mercedes Benz Gla service cost?

A basic service at an independent garage typically costs £120–£180. Main dealer servicing is usually £200–£300. Major items like timing belts or gearbox services cost significantly more.

Can I service a Mercedes Benz Gla at an independent garage?

Yes. Under UK consumer law, using an independent garage does not void your manufacturer warranty, provided they use parts meeting the manufacturer's specification and follow the correct schedule. However, independent services won't appear in the franchised dealer digital records.