2020 Mercedes-Benz GLC maintenance schedule
Every service on the 2020 GLC, with its interval and an estimated cost.
The 2020 Mercedes-Benz GLC oil change interval is every 10,000 mi or 12 months, whichever comes first (estimated cost $150-$250). Done at every Service A and every Service B. No separate severe-service number: the booklet says ASSYST PLUS may show the next service earlier depending on operating conditions (p. 4).
- Service A
- 20,000mi
- ≈ 32,000km
- 24 mo
- Service B
- 20,000mi
- ≈ 32,000km
- 24 mo
- Brake Fluid
- 24mo
- Cabin Air Filter
- 20,000mi
- ≈ 32,000km
- 24 mo
Service intervals
From the 2020 Mercedes-Benz GLC schedule. Rows marked “GarageHub estimate” are not taken from the manufacturer's maintenance schedule. Check your owner's manual for those.
| Service | Every | Est. Cost | Status |
|---|---|---|---|
| Service ASafety itemFirst Service A at 10,000 mi or 12 months, then every 20,000 mi or 24 months, alternating with Service B (so one A or B visit every 10,000 mi / 12 months). ASSYST PLUS may call it earlier under harsh operating conditions (booklet p. 4). Contents: oil and filter, fluid checks, brake/tire inspection; for the GLC also the dust filter and a poly-V-belt check (pp. 10-11). | 20,000 mi / 24 mo≈ 32,000 km / 24 mo | — | |
| Service BSafety itemFirst Service B at 20,000 mi or 24 months, then every 20,000 mi or 24 months. Adds the activated-charcoal (combination) cabin filter; MBUSA's page also lists the brake-fluid exchange under Service B. | 20,000 mi / 24 mo≈ 32,000 km / 24 mo | — | |
| Engine Oil & FilterSafety itemDone at every Service A and every Service B. No separate severe-service number: the booklet says ASSYST PLUS may show the next service earlier depending on operating conditions (p. 4).Guide How to Change Your Oil · The engine oil system: what every part does | 10,000 mi / 12 mo≈ 16,000 km / 12 mo | $150-$250 | |
| Cabin Air FilterActivated-charcoal dust filter replaced at every Service B. The booklet also marks 'Replace dust filter' for the GLC at every Service A and B, with footnote 7 'The specific maintenance interval for your country applies'; MBUSA's prepaid chart shows the cabin dust/combination filter only at 20K steps. Severe: replace sooner with heavy dust or frequent recirculation (p. 5).Guide How to Replace Your Cabin Air Filter | 20,000 mi / 24 mo≈ 32,000 km / 24 mo | $40-$80 | |
| Brake FluidSafety itemTime-based only in the booklet. MBUSA's prepaid chart and Service B page put it at every Service B (20,000-mile steps).Guide How to Bleed Brakes (and Change Brake Fluid) | 24 mo | $120-$200 | |
| Spark PlugsAll gasoline engines incl. AMG (the 40,000 mi/4 yr AMG plug row applies to CLA/GLA only). Severe: frequent starting and stopping, excessive idling or sustained fast highway driving may call for earlier replacement (p. 5).Guide How to Change Spark Plugs · How to Choose and Use a Torque Wrench | 50,000 mi / 60 mo≈ 80,000 km / 60 mo | $250-$450 | |
| Engine Air FilterMBUSA's prepaid chart gives 50K/100K for all MY2015+ models, which covers the M264 four-cylinder generically. Severe dust: replace more often (maintenance booklet, p. 9).Guide How to Replace Your Air Filter (Engine & Cabin) | 50,000 mi / 60 mo≈ 80,000 km / 60 mo | $50-$90 | |
| Automatic Transmission FluidOil and filter change. No time limit given. The M264 is covered generically by the prepaid chart (MY2015+ only).Guide How to Change Transmission Fluid | 60,000 mi≈ 97,000 km | $400-$650 | |
| Transfer Case Fluid (9G-TRONIC (NAG3) / 4MATIC only)4MATIC only. No time limit given.Guide How to Change Transfer Case Fluid (4x4 and AWD) | 60,000 mi≈ 97,000 km | $120-$200 | |
| Engine CoolantObserve the correct mixture ratio. May be needed sooner if non-approved coolant was used (p. 5).Guide How to Flush Your Coolant System | 120,000 mi / 144 mo≈ 193,000 km / 144 mo | $200-$350 | |
| Fuel FilterGasoline engines. | 120,000 mi / 144 mo≈ 193,000 km / 144 mo | — | |
| Brake InspectionVisual check of pads/linings and disks at every Service A and B.Guide How to Change Brake Pads: Step-by-Step Guide | 10,000 mi / 12 mo≈ 16,000 km / 12 mo | — | |
| Drive Belt InspectionPoly-V-belt visual check at every Service A (first at 10,000 mi/12 months, then every 20,000 mi/24 months). The Service B table does not mark it for the GLC.Guide How to Replace a Serpentine Belt | 20,000 mi / 24 mo≈ 32,000 km / 24 mo | — | |
| Engine Air Filter (AMG 63)From MBUSA's generic 'Specific AMG Model Services' row (30K/60K/90K), which names no models. Same value MBUSA's maintenance booklet gives the M177 in the C-Class (30k/3yr, p. 18).Guide How to Replace Your Air Filter (Engine & Cabin) | 30,000 mi≈ 48,000 km | $50-$90 | |
| Automatic Transmission Fluid (AMG 63)Generic PPM AMG row (30K/60K/90K); not GLC-specific. Matches the booklet's M177 row for the C-Class (once at 30k/3yr, p. 17).Guide How to Change Transmission Fluid | 30,000 mi≈ 48,000 km | $400-$650 | |
| Rear Differential Fluid (AMG 63)Generic PPM AMG row: once at 2,000 mi, then 30K/60K/90K; not GLC-specific, and the booklet ties the C-Class equivalent to option codes 467/471/P30.Guide How to Change Differential Fluid (Rear Axle and Front 4x4) | 30,000 mi≈ 48,000 km | $150-$250 | |
| Engine Air Filter (GLC 350e)Replaced at 50,000 and 100,000 mi.Guide How to Replace Your Air Filter (Engine & Cabin) | 50,000 mi≈ 80,000 km | $50-$90 | |
| Automatic Transmission Fluid (GLC 350e)Transmission oil and filter replacement at 60,000 mi. No time limit given.Guide How to Change Transmission Fluid | 60,000 mi≈ 97,000 km | $400-$650 | |
| Battery Inspection & ReplacementGarageHub estimateGuide How to Replace a Car Battery (on a Modern Car) · The car battery and charging system: what every part does | 48 mo | $250-$400 |
≈ converted from the other unit and rounded.
Est. costs are US-typical, in USD.
Common questions about the 2020 Mercedes-Benz GLC
How often does a 2020 Mercedes-Benz GLC need an oil change?
The 2020 Mercedes-Benz GLC oil change interval is every 10,000 mi or 12 months, whichever comes first (estimated cost $150-$250). Done at every Service A and every Service B. No separate severe-service number: the booklet says ASSYST PLUS may show the next service earlier depending on operating conditions (p. 4).
What maintenance does a 2020 Mercedes-Benz GLC need?
The services not to skip on a 2020 Mercedes-Benz GLC: service a every 20,000 mi / 24 mo; service b every 20,000 mi / 24 mo; engine oil & filter every 10,000 mi / 12 mo; brake fluid every 24 mo. The table above lists every service with its interval and an estimated cost.