BMW Z4 sDrive30I Engine Replacement - Rebuilt & Reconditioned Units from £3,500
Compare BMW Z4 sDrive30I replacement engine prices from trusted UK suppliers. Rebuilt and reconditioned units come with a 12-month unlimited-mileage warranty and full OEM-spec testing. Save up to 60% versus a main dealer quote.
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BMW Z4 sDrive 30i Specialists
Expert Solutions for Every Z4 sDrive 30i - sDrive30i to sDrive30i M Sport
Need a reliable replacement engine for your BMW Z4 sDrive 30i?
Engine Finders specializes in B48B20 engines with solutions for common timing chain tensioner failures.
- ✔ Z4 sDrive 30i-Specific Engine Types - Addressing VANOS system failures in B48B20 variants
- ✔ Precision-Tuned for Z4 sDrive 30i - Correct calibration for TwinPower Turbo technology
- ✔ Z4 sDrive 30i Pricing Advantage - Save up to £1,200 on common high-pressure fuel pump replacements
BMW Z4 sDrive 30i Replacement Engines Options - Verified Units (UK Supply)
All engines bench-tested, VAT-inclusive, with 12-month warranty. MoT-compliant. Nationwide delivery. Direct OEM fitment for G29 chassis.
B48B20 engines with reinforced timing chain components.
Fully rebuilt B48 engines with updated VANOS components.
Inspected B48 units with new gaskets and seals.
Direct swap B48 engines for immediate installation.
Cleaned and tested B48 engines with new timing components.
Low-mileage B48 engines with verified service history.
BMW Z4 sDrive 30i Compatible Engine Codes & Average Prices on Rebuilt Units
All engines professionally reconditioned, bench-tested, and supplied with 12-month warranty. Direct OEM fitment. VAT-inclusive. Nationwide UK delivery.
Why Choose Engine Finders for Your BMW Z4 sDrive 30i Engine?
Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned BMW Z4 sDrive 30i replacement engines. From the B48B20A to B48B20M0 variants, we provide solutions specifically for the G29 chassis. Whether you need a replacement due to timing chain tensioner failures in the B48B20A Z4 sDrive 30i or VANOS system issues, Engine Finders makes it easy to locate the right engine, fast.
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✔ Z4 sDrive 30i-Specific Timing Chain Solutions
We replace the B48B20 timing chain tensioner with upgraded components addressing the specific wear pattern in G29 chassis Z4 sDrive 30i models from 2019-2024.
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✔ VANOS System Expertise for B48 Engines
Our reconditioned engines include updated VANOS solenoids and revised camshaft adjusters specifically for the B48B20's unique failure pattern in Z4 sDrive 30i roadsters.
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✔ High-Pressure Fuel Pump Solutions
We install upgraded high-pressure fuel pumps (OEM 13537586979) to address the specific fuel delivery issues that affect B48 engines in the Z4 sDrive 30i's sport-oriented driving conditions.
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✔ Turbocharger Wastegate Calibration
Our specialists recalibrate turbocharger wastegates specifically for the Z4 sDrive 30i's TwinPower Turbo system, preventing the rattling issues common in B48 engines under hard acceleration.
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✔ Cooling System Optimization
We upgrade cooling system components including thermostat housings and water pumps specifically for the Z4 sDrive 30i's higher thermal loads during spirited driving.
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✔ Direct G29 Chassis Compatibility
All our B48 engines are pre-configured for direct installation in Z4 sDrive 30i G29 chassis, including proper ECU coding and compatibility with the roadster's unique electronics.
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✔ Carbon Buildup Prevention
We implement BMW's latest technical solutions for direct injection carbon buildup, including revised PCV systems specific to the B48 engine in Z4 sDrive 30i applications.
Rated 4.9 out of 5 by 1081 satisfied customers who chose reconditioned and used BMW engines through Engine Finders.
Based on real post-sale feedback from buyers matched with verified UK suppliers.
BMW Z4 sDrive 30i Engines for Sale | Engine Finders
Engine Finders provides UK drivers with access to premium reconditioned BMW Z4 sDrive 30i engines. Whether you need a replacement due to specific timing chain tensioner failures in the B48B20A Z4 sDrive 30i or VANOS system issues, our network of specialists offers direct-fit solutions for the G29 chassis.
BMW Z4 sDrive 30i Replacement Engines
The Z4 sDrive 30i (G29 chassis, 2019-present) features the B48 2.0L turbocharged engine, which has evolved through several technical updates. Early models (2019-2020) with B48B20A engines experienced timing chain tensioner wear and VANOS solenoid failures. Later variants (2021-present) with B48B20B and B48B20M0 engines addressed these issues with revised cooling systems and updated fuel injection technology. The G29 platform's sport-oriented tuning creates unique thermal management challenges that require specific engine calibration.
BMW Z4 sDrive 30i Models & Engines Codes
The Z4 sDrive 30i utilizes specific B48 engine variants optimized for the roadster platform:
- B48B20A: 2.0L turbo petrol (258 HP) in 2019-2020 models, known for timing chain tensioner issues and VANOS system failures specific to G29 chassis
- B48B20B: Updated 2.0L turbo (258 HP) in 2020-2021 models with revised cooling and fuel system components
- B48B20M0: Latest 2.0L turbo (258 HP) in 2021-present models featuring enhanced thermal management and emissions systems
Each engine variant requires specific calibration for the Z4's sport driving characteristics and unique electronic systems in the G29 platform.
Buy Used and Second-Hand BMW Z4 sDrive 30i Engines
We offer various engine types specifically tested for Z4 sDrive 30i compatibility:
- Used Engines: Low-mileage B48 units with verified service history and compression testing
- Reconditioned Engines: Fully inspected B48 engines with new gaskets, seals, and timing components
- Rebuilt Engines: Complete overhaul with upgraded components addressing common B48 failure points
- Remanufactured Engines: Factory-spec rebuilds with all wear components replaced and performance testing
Each engine undergoes specific testing for G29 chassis compatibility and sport driving conditions.
BMW Z4 sDrive 30i Engines in Stock
Our reconditioned Z4 sDrive 30i engines include comprehensive updates addressing common B48 issues:
- New timing chain tensioners and guides
- Updated VANOS solenoids and camshaft adjusters
- Reinforced turbocharger wastegate mechanisms
- Upgraded high-pressure fuel pumps (OEM 13537586979)
- New valve cover gaskets and PCV systems
- Revised cooling system components for thermal management
Each engine undergoes dyno-testing to ensure proper performance under Z4-specific driving conditions.
Warranty for Replacement BMW Z4 sDrive 30i Engines
All our Z4 sDrive 30i engines come with comprehensive warranty coverage:
- 12-month warranty on all reconditioned and rebuilt engines
- 3-month warranty on quality used engines with verified history
- Coverage includes parts and labor through our network of specialists
- Nationwide claim processing through our approved installer network
Note: Engine Finders operates as a price comparison website connecting customers with verified engine suppliers. All warranty claims are processed through the supplying garage.
Expert Tips for Choosing the Right Engine for Your BMW Z4 sDrive 30i
BMW Z4 sDrive 30i Engine Types Explained
- Used B48 engines: Low-mileage units from 2019-2023 G29 chassis, ideal for budget-conscious owners
- Reconditioned B48B20A: Updated timing chain tensioners for 2019-2020 models
- Rebuilt B48B20B: Complete overhaul with VANOS system upgrades for 2020-2021 models
- Remanufactured B48B20M0: Factory-spec rebuilds with enhanced cooling for 2021-2024 models
BMW Z4 sDrive 30i Replacement Engine Cost in the UK
- B48B20A engines: £3,200-£3,800 due to timing chain tensioner replacement requirements
- B48B20B variants: £3,500-£4,200 with updated VANOS and cooling system components
- B48B20M0 engines: £3,800-£4,500 featuring latest technical updates and enhancements
- Save 20-30% through Engine Finders compared to main dealer prices for G29 compatibility
Finding the Right BMW Z4 sDrive 30i Engine
- Check VIN 10th character: K=2019, L=2020, M=2021 for correct B48 variant matching
- B48B20A engines: Specific to 2019-2020 G29 models with different ECU calibration
- B48B20M0 engines: 2021+ models require specific software integration for full functionality
- Verify turbocharger part number: 11657604073 for proper G29 roadster performance mapping
BMW Z4 sDrive 30i Petrol vs Diesel Engines
- B48 2.0L turbo petrol: 258 HP optimized for sport driving with TwinPower Turbo technology
- Average fuel economy: 36-42 MPG depending on driving style and road conditions
- ULEZ compliant: All B48 engines meet Euro 6 standards for London congestion charge
- Performance tuning: B48 responds well to remaps while maintaining reliability
Quality Assurance & Warranty
- Compression testing: All B48 engines tested to 180-200 PSI specification for G29 models
- Timing chain replacement: Updated tensioner 11347585994 installed on all reconditioned units
- VANOS system: Solenoids and adjusters tested to BMW specification 11367585425
- 12-month warranty includes turbocharger and high-pressure fuel pump components
Compare & Save on BMW Z4 sDrive 30i Engines
- Request multiple quotes: Prices vary significantly for B48 engines based on mileage
- Verify timing chain work: Ensure updated tensioner 11347585994 is included in rebuild
- Check cooling system: G29 models require specific radiator and intercooler compatibility
- Ask about ECU coding: Proper integration essential for sport mode and DSC functionality
BMW Z4 sDrive 30i Engine Works: How Experts Rebuild Engines
When your engine fails, BMW Z4 sDrive 30i engine works can restore performance at a fraction of the cost of a brand-new engine. From diagnostics to rebuild, here's how experts ensure optimal results.
1. Teardown & Inspection: Complete disassembly of B48 engine with focus on timing chain wear patterns specific to G29 chassis. Cylinder head measured for warpage tolerance (0.1mm max).
2. Block Machining: Cylinder honing with torque plate to ensure proper ring seating. Crankshaft journals polished to BMW specification with bearing clearance check (0.03-0.05mm).
3. Head Reconditioning: Valve seats recut and valves lapped. VANOS hubs inspected and replaced if worn. Camshaft bearings checked for proper oil clearance.
4. Component Replacement: Timing chain kit with updated tensioner 11347585994 installed. High-pressure fuel pump 13537586979 replaced if showing wear. Turbocharger wastegate mechanism upgraded.
5. Assembly & Torque: Precision assembly with OEM torque specifications. Cylinder head bolts torqued to 30Nm + 90° + 90°. Main bearing caps torqued to 80Nm + 90°.
6. Testing & Calibration: Cold compression test followed by hot run-in. ECU coding for proper G29 chassis integration. Road testing to verify sport mode functionality.