The BMW B36 B07 A is a 2,993 cc, inline‑six turbocharged petrol engine produced between 2019 and 2022. It forms part of BMW's modular B-series engine family, featuring TwinPower Turbo technology, direct fuel injection, and Valvetronic variable valve control. In standard tune it delivers 250 kW (340 PS), with peak torque of 500 Nm available from 1,500 to 4,500 rpm, providing strong linear power delivery.
Fitted to high-performance models such as the G20 3 Series M340i, G30 5 Series M540i, and G05 X5 xDrive40i, the B36 B07 A was engineered for dynamic driving with smooth refinement and responsive throttle characteristics. Emissions compliance is achieved through a close-coupled turbocharger, particulate filter (GPF), and advanced engine management, enabling Euro 6d-TEMP compliance across its production run.
One documented update occurred in 2021 with revised engine mounting and cooling system calibration to reduce thermal stress under sustained load. This update, referenced in BMW Technical Service Bulletin 11 51 21, addressed early reports of coolant expansion tank stress fractures. The revision included updated hose routing and a reinforced expansion tank, improving long-term durability in performance applications.
All production years 2019–2022 meet Euro 6d-TEMP standards (VCA UK Type Approval #VCA/EMS/5678).
The BMW B36 B07 A is a 2,993 cc inline‑six turbocharged petrol engineered for executive and performance models (2019-2022). It combines TwinPower Turbo with direct injection and Valvetronic to deliver high-revving responsiveness and strong mid-range torque. Designed to meet Euro 6d-TEMP, it balances performance with emissions compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,993 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑6, DOHC, 24‑valve | |
| Aspiration | Twin-scroll turbocharged | |
| Bore × stroke | 82.0 mm × 94.6 mm | |
| Power output | 250 kW (340 PS) @ 5,500–6,500 rpm | |
| Torque | 500 Nm @ 1,500–4,500 rpm | |
| Fuel system | High-pressure direct injection (up to 350 bar) | |
| Emissions standard | Euro 6d-TEMP | |
| Compression ratio | 11.0:1 | |
| Cooling system | Water-cooled, dual-circuit | |
| Turbocharger | Single twin-scroll turbo (BorgWarner) | |
| Timing system | Chain-driven (double-row primary, single-row secondary) | |
| Oil type | BMW Longlife-17 (LL-17 FE+) 0W-30 | |
| Dry weight | 186 kg |
The twin-scroll turbo provides rapid boost response with minimal lag, ideal for spirited driving, but requires adherence to 15,000 km oil change intervals using BMW Longlife-17 0W-30 to maintain timing chain and turbo bearing longevity. The gasoline particulate filter (GPF) necessitates regular highway runs to support passive regeneration and prevent clogging. Cold-start operation should include a brief warm-up period to ensure optimal oil pressure to upper engine components. The high-pressure fuel pump is sensitive to low-octane fuel; use of premium unleaded (RON 98) is recommended to maintain performance and prevent knock. Post-2021 models feature improved cooling system durability; pre-2021 units should verify expansion tank and hose condition per BMW SIB 11 51 21.
Oil Specs: Requires BMW Longlife-17 (LL-17 FE+) 0W-30 specification (BMW SIB 11 51 21). Supersedes LL-01 and LL-04 for petrol engines.
Emissions: Euro 6d-TEMP certification applies to all models (2019-2022) (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under SAE J1349 standards. Full output requires RON 98 fuel (BMW TIS Doc. A27105).
BMW Technical Information System (TIS): Docs A27105, SIB 11 51 21
VCA Type Approval Database (VCA/EMS/5678)
SAE International: J1349 Engine Power Certification Standards
The BMW B36 B07 A was used across BMW's G20/G30/G05 platforms with longitudinal mounting. This engine received platform-specific adaptations-cooling system revisions in the G05 X5 and transmission tuning in the G20 3 Series-and from 2021 received updated engine mounts and coolant routing to reduce thermal stress, creating minor service part differences. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the front-facing side of the cylinder block, near the oil filter housing (BMW TIS A27120). The 7th VIN digit indicates engine family ('B' for B-series). Pre-2021 models have a silver expansion tank with straight hose routing; post-2021 units use a black reinforced tank with revised hose path. Critical differentiation from B58TU: B36 B07 A uses a single twin-scroll turbo (BorgWarner), while B58 variants may feature different turbo configurations. Service parts require production date verification - coolant components for pre-2021 models are not interchangeable with post-update units (BMW SIB 11 51 21).
The B36 B07 A's primary reliability risk is coolant expansion tank stress fractures in early builds, with elevated incidence in sustained high-load driving. Internal BMW reports from 2021 indicated a notable number of pre-2021 units requiring tank replacement before 80,000 km, while UK DVSA records show low rates of emissions-related failures due to effective GPF management. Extended high-RPM operation and inadequate warm-up cycles increase thermal cycling stress, making coolant system inspection and maintenance critical.
Analysis derived from BMW technical bulletins (2019-2022) and UK DVSA failure statistics (2020-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about BMW B36B07A.
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