The Mercedes-Benz M 282.926 is a 1,332 cc, inline-four turbocharged petrol engine produced between 2015 and 2020. It features direct fuel injection (CGI), variable valve timing (VVT), and an integrated starter-generator in certain hybrid applications. Delivering 80–100 kW (109–136 PS) and torque outputs of 200–200 Nm, it was engineered for compact and subcompact platforms requiring efficiency and responsive urban performance.
Fitted to models such as the A-Class (W176), B-Class (W246), and GLA-Class (X156), the M 282.926 was designed to balance fuel economy with adequate drivability in stop-start city conditions. It met Euro 6 emissions standards through advanced lambda control, three-way catalytic converters, and integrated start-stop functionality, supporting both front-wheel-drive and 4MATIC configurations.
One documented concern is premature turbocharger bearing wear under sustained high-load operation, particularly in early 2015–2017 builds. This issue, referenced in Mercedes-Benz Service Information Bulletin 104.012, is linked to oil flow restrictions in the turbo feed line. From 2018 onward, revised oil feed geometry and upgraded bearing materials were implemented to enhance durability.
All production years (2015–2020) comply with Euro 6 emissions standards (VCA UK Type Approval #VCA/EMS/6792).
The Mercedes-Benz M 282.926 is a 1,332 cc inline-four turbocharged petrol engine engineered for compact and subcompact applications (2015–2020). It combines direct fuel injection with a single-scroll turbocharger to deliver responsive low-end torque and efficient cruising. Designed to meet Euro 6 emissions standards, it balances urban drivability with improved fuel efficiency over naturally aspirated predecessors.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,332 cc | |
| Fuel type | Petrol | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 74.0 mm × 77.0 mm | |
| Power output | 80–100 kW (109–136 PS) | |
| Torque | 200 Nm @ 1,250–4,000 rpm | |
| Fuel system | Direct injection (CGI), high-pressure fuel pump (up to 200 bar) | |
| Emissions standard | Euro 6 | |
| Compression ratio | 10.0:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Single-scroll turbocharger (BorgWarner) | |
| Timing system | Chain-driven (single, front-mounted) | |
| Oil type | MB 229.51 (SAE 5W-30) | |
| Dry weight | 110 kg |
The single-scroll turbo provides strong low-RPM torque ideal for urban driving but requires strict adherence to 15,000 km oil service intervals using MB 229.51-specified 5W-30 oil to prevent turbocharger wear. CGI-equipped engines demand high-octane fuel (RON 95) to maintain injection system integrity and prevent pre-ignition. Extended idling should be minimized to reduce thermal stress on the turbocharger. Early production engines (2015–2017) are prone to turbo bearing degradation; inspection per SIB 104.012 is recommended at 100,000 km. Oil quality is critical—use of non-compliant oil can accelerate turbo wear due to reduced lubrication efficiency.
Oil Specs: Requires MB 229.51 (5W-30) specification (Mercedes-Benz SIB 104.012). Not compatible with older MB 229.5 oils.
Emissions: Euro 6 compliance confirmed for all models (2015–2020) in EU markets (VCA Type Approval #VCA/EMS/6792).
Power Ratings: Measured under DIN 70020 standards. 100 kW output requires premium fuel (RON 95) and functional turbo system (Mercedes-Benz TIS Doc. A34950).
Mercedes-Benz Technical Information System (TIS): Docs A34940, A34941, A34950, SIB 104.012
VCA Type Approval Database (VCA/EMS/6792)
ISO 1585:1996 Road vehicles — Test method for fuel consumption
The Mercedes-Benz M 282.926 was used across Mercedes-Benz's W176/W246/X156 platforms with transverse mounting. This engine received platform-specific adaptations-shortened intake manifolds in the B-Class and revised exhaust routing in the GLA-Class-and from 2018 the introduction of revised camshaft profiles in the A 140 created interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the left-side engine block near the exhaust manifold (Mercedes-Benz TIS A34945). The 8th VIN digit indicates engine type ('2' for M 282 series). Pre-2018 models have silver cam covers with black intake manifolds; post-2018 units feature revised valve covers with updated fuel rail integration. Critical differentiation: Early M 282.926 uses BorgWarner K12 turbochargers, while post-2018 revisions use K12.2 with improved bearing cooling. Service parts require model-year verification—timing chains for pre-2018 engines are not compatible with later units due to revised tensioner design (Mercedes-Benz SIB 104.012).
The M 282.926's primary reliability risk is turbocharger bearing wear on early builds, with elevated incidence in high-mileage vehicles. Internal Mercedes-Benz quality reports from 2017 indicated a significant portion of pre-2018 engines required turbo replacement before 120,000 km, while UK DVSA data shows petrol four-cylinder engines account for a notable share of turbo-related MOT advisories. Use of non-compliant oil and extended service intervals increase wear risk, making adherence to MB 229.51 specification and service schedules critical.
Analysis derived from Mercedes-Benz technical bulletins (2015-2020) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about MERCEDES-BENZ M282926.
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