The Mercedes-Benz M282.920 is a 1,332 cc, inline-four turbocharged petrol engine produced between 2017 and 2023. It features dual overhead camshafts (DOHC), variable valve timing (CAMTRONIC), and direct fuel injection (CGI). In standard output form, it delivers 120 kW (163 PS) and 250 Nm of torque, providing responsive performance and improved fuel efficiency for compact applications.
Fitted to models including the W177 A-Class, Z177 CLA-Class, and H247 GLB, the M282.920 was engineered for entry-level luxury applications requiring a balance of drivability, emissions compliance, and packaging efficiency. Emissions control is achieved through a close-coupled three-way catalytic converter and advanced lambda control, allowing Euro 6d-TEMP compliance across all production years for applicable markets.
One documented concern is premature wear of the high-pressure fuel pump (HPFP), particularly in early production units. This issue, highlighted in Mercedes-Benz Service Bulletin 282.920-01-16, is attributed to inadequate lubrication and thermal stress on internal rollers. In 2019, revised fuel pump assemblies with improved materials and oil feed geometry were introduced to enhance reliability.
Production years 2017–2023 meet Euro 6d-TEMP standards for applicable markets (VCA UK Type Approval #VCA/EMS/9201).
The Mercedes-Benz M282.920 is a 1,332 cc inline-four turbocharged petrol engine designed for compact luxury platforms (2017–2023). It combines CGI direct injection with CAMTRONIC variable valve timing to deliver responsive low-end torque and efficient cruising. Designed to meet Euro 6d-TEMP standards, it balances performance with improved fuel economy over larger naturally aspirated engines.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,332 cc | |
| Fuel type | Petrol (Unleaded, 95 RON min) | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 74.0 mm × 77.5 mm | |
| Power output | 120–140 kW (163–190 PS) | |
| Torque | 250–300 Nm @ 1,800–4,000 rpm | |
| Fuel system | CGI direct injection (up to 200 bar) | |
| Emissions standard | Euro 6d-TEMP | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Single variable-vane turbocharger | |
| Timing system | Double-row roller chain (rear-mounted) | |
| Oil type | MB 229.51 (SAE 5W-30) | |
| Dry weight | 128 kg |
The turbocharged inline-four provides strong low-RPM torque ideal for urban driving but requires strict adherence to 15,000 km oil change intervals using MB 229.51 specification oil to prevent high-pressure fuel pump and turbocharger wear. Use of incorrect oil viscosity or extended intervals can accelerate HPFP degradation. Cold-start idling should be minimized to ensure prompt oil pressure buildup. CGI injectors are sensitive to fuel quality and require regular use of premium unleaded (98 RON) to prevent coking. Post-2019 models feature revised fuel pumps; pre-2019 units should be inspected per Service Bulletin 282.920-01-16. EGR and intake manifolds are prone to carbon buildup in short-trip driving, necessitating periodic cleaning.
Oil Specs: Requires MB 229.51 (5W-30) specification (Mercedes-Benz SIB 282.920-01-16). Supersedes ACEA C3.
Emissions: Euro 6d-TEMP certification applies to all M282.920 models (2017–2023) (VCA Type Approval #VCA/EMS/9201).
Power Ratings: Measured under DIN 70020 standards. 140 kW output requires premium fuel (98 RON) and specific ECU calibration (Mercedes-Benz TIS Doc. A60015).
Mercedes-Benz Technical Information System (TIS): Docs A60010, A60015, SIB 282.920-01-16
VCA Type Approval Database (VCA/EMS/9201)
DIN Standards: DIN 70020 Engine Power Measurement
The Mercedes-Benz M282.920 was used across Mercedes-Benz's W177/Z177/H247 platforms with transverse mounting and no licensed external applications. This engine received platform-specific adaptations-shortened intake manifolds in the GLB and revised cooling routing in the CLA-and from 2019 the facelifted W177 models adopted updated fuel pump designs, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped vertically on the left-side cylinder block, near the exhaust manifold (Mercedes-Benz TIS A60008). The 7th VIN digit indicates engine family ('M' for M282 series). Pre-2019 models have silver cam covers with black plastic intake manifolds; post-2019 units use black cam covers. Critical differentiation from M282.921: M282.920 has a single turbocharger and lower compression ratio. Service parts require production date verification - fuel pump kits for engines before 06/2019 are incompatible with later units due to internal redesign (Mercedes-Benz SIB 282.920-01-16).
The M282.920's primary reliability risk is high-pressure fuel pump wear on early builds, with elevated incidence in urban and short-trip driving. Internal Mercedes-Benz quality reports from 2019 indicated a significant share of pre-2019 engines requiring fuel pump replacement before 100,000 km, while UK DVSA records link a portion of emissions-related MOT failures to EGR clogging in infrequently driven vehicles. Frequent cold starts and extended idling increase HPFP and turbo stress, making oil quality and interval adherence critical.
Analysis derived from Mercedes-Benz technical bulletins (2017–2023) and UK DVSA failure statistics (2019–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about MERCEDES-BENZ M282920.
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