Mercedes Benz Gla service: key facts
- Oil service every 15,500 miles or 1 year
- Basic service costs £120–£300 depending on garage
- Automatic transmission fluid: £200–£300 — don't skip this one
- 1 generation from 2014 to 2020
- 8 tracked service items across routine, major, and periodic schedules
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 item | Interval | Typical 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 item | Interval | Typical 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 item | Interval | Typical 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
|
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.