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Mercedes Benz Cla Service Schedule & Costs

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

C117 (2013–2019)1.6 Turbo, 2.0 Turbo, 1.8 CDI, 2.1 CDI
C118 (2019–2024)1.3 Turbo, 2.0 Turbo, 2.1 CDI

Mercedes Benz Cla 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 10,000-15,500 miles depending on driving conditions.
C117, C118
10,000 miles or 1 year
£120–£180
Dealer: £200–£300
Air filter
Mercedes specifies 20,000 miles. Check condition at 10,000 mile service intervals. Dirty filter affects turbocharger performance and fuel economy. Replace more frequently in dusty conditions.
C117, C118
20,000 miles or 2 years
£25–£45
Dealer: £50–£80
Cabin pollen filter
Located behind glove box. Restricted airflow affects HVAC performance and can cause musty odours. Replace annually in urban areas with high pollution.
C117, C118
20,000 miles or 2 years
£30–£50
Dealer: £60–£90
Diesel particulate filter forced regeneration
System attempts automatic regeneration every 300-600 miles depending on soot loading.
C117, C118
600 miles
£80–£120
Dealer: £120–£180

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
Brake fluid
Mercedes specifies 2 years regardless of mileage.
C117, C118
2 years
£60–£90
Dealer: £120–£180
Spark plugs
Mercedes specifies 60,000 miles for turbocharged petrol engines. Use NGK or Bosch OE specification plugs only. Worn plugs cause misfires and potential engine management light illumination.
C117, C118
60,000 miles or 6 years
£80–£120
Dealer: £150–£220

Known issues to watch for

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

major
Excessive brake pad wear (C117/C118)
MOT data shows CLA models fail brake pad thickness tests at up to 15.3 times the national fleet average, particularly on 1.6-litre petrol variants at low mileage.
major
Brake fluid loss (C117/C118)
MOT data shows CLA models fail brake fluid level tests at up to 11.5 times the national fleet average, particularly affecting 1.3-litre petrol variants in the 40,000-60,000 mile range.
minor
Suspension joint dust cover deterioration (C117/C118)
MOT data shows CLA models fail suspension dust cover tests at up to 7.2 times the national fleet average, particularly affecting 2.1-litre diesel variants from 20,000 miles onwards.
minor
Engine management light illumination (C117/C118)
The pattern affects all mileage bands including new cars, suggesting emissions system faults rather than wear-related issues.

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

Check a Mercedes Benz Cla's service history

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

Check service history

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Mercedes Benz Cla service FAQs

How often should a Mercedes Benz Cla be serviced?

A Mercedes Benz Cla should have an oil service every 10,000 miles or 1 year, whichever comes first. Mercedes ASSYST service indicator typically shows 10,000-15,500 miles depending on driving conditions.

How much does a Mercedes Benz Cla 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 Cla 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.