BMW X4 M Competition Engine Replacement - Rebuilt & Reconditioned Units from £5,495

BMW X4 M Competition Engines for Sale | Engine Finders

Need a reliable BMW X4 M Competition replacement engine? From timing chain tensioner failures in early S58 units to injector seal wear, we supply tested rebuilt engines designed to restore performance and reliability.

BMW X4 M Competition Replacement Engines

The X4 M Competition, produced from 2019-2023 on the G02 platform, introduced the high-performance S58 twin-turbo inline-6. While its reinforced block and cooling upgrades marked a step forward, early production years faced issues with high-pressure fuel pump wear and turbo actuator calibration. BMW Service Bulletin SWE-19-07 addressed early chain rattle in specific 2019 engines. Compared to the standard X4 M, the Competition trim used different ECU mapping and intercooling, creating unique wear points. Owners often report VANOS solenoid clogging from oil debris by 60k miles, requiring regular inspection. This guide applies specifically to the X4 M Competition (G02, 2019-2023).

BMW X4 M Competition Models & Engines Codes

The X4 M Competition is powered exclusively by the S58 engine family, though multiple calibration codes were used across its production years. Below are the key codes specific to this variant and their known behaviors.

• S58B30T0: 3.0L twin-turbo petrol, 2019-2021, known for timing chain guide wear (OEM 11318642232) in early G02 builds.
• S58B30T1: Updated 3.0L petrol, 2021-2023, improved oil pump design but prone to HPFP failures.
• S58B30T2: Competition-exclusive calibration, higher boost, requires intercooler maintenance to prevent heat soak.
• ECU Variant MEVD 17.2.G: Used in G02 Competition, calibration-specific injector settings leading to unique seal wear.

While the S58 is also fitted in models like the X3 M, in the X4 M Competition it uses different gear ratios and cooling layout, resulting in distinct stress on turbochargers and VANOS compared to other BMW platforms.

Buy Used and Second-Hand BMW X4 M Competition Engines

When considering a replacement, owners can choose from used, rebuilt, reconditioned, or remanufactured engines. Each option addresses different needs depending on the X4 M Competition’s S58-specific wear patterns.

• Used engines - lowest cost, but check for injector seal and turbo wear.
• Reconditioned engines - refreshed with chain kit and seals.
• Rebuilt engines - complete strip-down and part replacement.
• Remanufactured engines - factory-standard rebuild with BMW-approved components.

For X4 M Competition with S58 engines, remanufactured or rebuilt units are strongly recommended to prevent repeat timing chain or fuel pump failures.

BMW X4 M Competition Engines in Stock

Each reconditioned X4 M Competition engine comes with critical replacements and upgrades designed to address known weak points specific to this model.

• New timing chain tensioner (OEM 11318642232) and guide rails.
• Rebuilt turbochargers with recalibrated actuators.
• High-pressure fuel pump bench-tested.
• VANOS solenoids ultrasonically cleaned and resealed.

All rebuilt S58 engines undergo dyno testing specific to G02 X4 M Competition calibration, ensuring correct boost levels and ECU mapping before release.

Warranty for Replacement BMW X4 M Competition Engines

Every rebuilt or reconditioned X4 M Competition engine supplied through Engine Finders comes with warranty protection tailored for S58 reliability concerns.

• 12 months unlimited mileage warranty on rebuilt/remanufactured engines.
• Coverage includes timing chain assembly and turbocharger components.
• Fuel pump and VANOS units covered for 6 months due to high-stress design.

Engine Finders is a price comparison service. Warranty terms vary by supplier; confirm coverage for your S58 engine before purchase.