BMW Z4 sDrive28I Engine Replacement - Rebuilt & Reconditioned Units from £1,800
Compare BMW Z4 sDrive28I 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 sDrive28i Specialists
Expert Solutions for Every Z4 sDrive28i - SE Roadster to M Sport Highline
Need a reliable replacement engine for your BMW Z4 sDrive28i?
Engine Finders specializes in Z4 sDrive28i engines, including solutions for common N20B20A timing chain and turbocharger failures.
- ✔ Z4 sDrive28i-Specific Engine Types - Addressing N20B20A timing chain tensioner wear
- ✔ Precision-Tuned for Z4 sDrive28i - Correct calibration for Valvetronic & turbo systems
- ✔ Z4 sDrive28i Pricing Advantage - Save up to £1200 on common turbo & chain repairs
BMW Z4 sDrive28i 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 E89 chassis (2009-2016).
Rebuilt N20B20 engines with reinforced timing chain kits.
Factory-level rebuilds correcting turbo and Valvetronic wear issues.
Inspected units with replaced seals and updated chain guides.
Plug-and-play swaps for fast recovery and OEM performance.
Cleaned and tested N20 units with improved reliability checks.
Verified-mileage units with history checked for known oil issues.
BMW Z4 sDrive28i 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 sDrive28i Engine?
Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned BMW Z4 sDrive28i replacement engines. From early N52B30 variants in the 2009-2011 models to later N20B20A engines used from 2011-2016, we provide direct-fit solutions tailored to your roadster. Whether you need a replacement due to timing chain tensioner failures in the N20B20A or VANOS solenoid wear in the N52B30, our network ensures you find the right engine with proven fixes built in.
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✔ Z4 sDrive28i-Specific Timing Chain Solutions
The N20B20A (2011-2016) in the Z4 sDrive28i is known for premature timing chain wear. We replace the OEM tensioner 11347585994 with upgraded assemblies that directly address the Z4’s unique load patterns, as highlighted in BMW Service Bulletin SWE-18-01.
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✔ VANOS Solenoid & Actuator Rebuilds
In N52B30 (2009-2011) Z4 sDrive28i units, worn VANOS solenoids cause rough idle and oil consumption. Our rebuilds include new solenoids and seals designed specifically to withstand the Z4’s higher RPM usage compared to saloon applications.
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✔ Turbocharger Reliability Enhancements
The N20B20A Z4 sDrive28i suffers from turbo seal leaks leading to oil starvation. We fit upgraded turbo seals (OEM 11657647001) and balance shafts, ensuring longer life under the Z4’s sport-focused driving dynamics.
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✔ Cooling System Resilience for Z4
Overheating is common in the Z4 sDrive28i due to restricted airflow compared to other BMW platforms. Our rebuilt N52B30 and N20B20A engines include reinforced water pumps (OEM 11517588885) and thermostats tailored to Z4 chassis airflow limitations.
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✔ Oil Seal & Gasket Upgrades
The Z4’s N52B30 variant commonly suffers from valve cover gasket failures. Our reconditioned engines are rebuilt with upgraded gaskets and crankcase ventilation systems specifically adapted for the roadster’s heat soak profile.
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✔ Direct Z4 Calibration Expertise
Unlike saloon applications of the N20 and N52, the Z4 sDrive28i has unique ECU mappings that stress different components. Our rebuilds integrate updated camshaft sensors (OEM 13627548994) and reprogrammed VANOS actuators suited for the Z4’s sport calibration.
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✔ Warranty-Backed Z4-Focused Rebuilds
Every Z4 sDrive28i engine we supply is bench-tested under simulated load to mirror convertible driving conditions. Backed by a 12-month unlimited mileage warranty, our solutions are tailored exclusively for the Z4 platform-not generic BMW replacements.
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.
Why Choose Engine Finders for Your BMW Z4 sDrive28i Engine?
Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned BMW Z4 sDrive28i replacement engines. From early N52B30 variants in the 2009-2011 models to later N20B20A engines used from 2011-2016, we provide direct-fit solutions tailored to your roadster. Whether you need a replacement due to timing chain tensioner failures in the N20B20A or VANOS solenoid wear in the N52B30, our network ensures you find the right engine with proven fixes built in.
-
✔ Z4 sDrive28i-Specific Timing Chain Solutions
The N20B20A (2011-2016) in the Z4 sDrive28i is known for premature timing chain wear. We replace the OEM tensioner 11347585994 with upgraded assemblies that directly address the Z4’s unique load patterns, as highlighted in BMW Service Bulletin SWE-18-01.
-
✔ VANOS Solenoid & Actuator Rebuilds
In N52B30 (2009-2011) Z4 sDrive28i units, worn VANOS solenoids cause rough idle and oil consumption. Our rebuilds include new solenoids and seals designed specifically to withstand the Z4’s higher RPM usage compared to saloon applications.
-
✔ Turbocharger Reliability Enhancements
The N20B20A Z4 sDrive28i suffers from turbo seal leaks leading to oil starvation. We fit upgraded turbo seals (OEM 11657647001) and balance shafts, ensuring longer life under the Z4’s sport-focused driving dynamics.
-
✔ Cooling System Resilience for Z4
Overheating is common in the Z4 sDrive28i due to restricted airflow compared to other BMW platforms. Our rebuilt N52B30 and N20B20A engines include reinforced water pumps (OEM 11517588885) and thermostats tailored to Z4 chassis airflow limitations.
-
✔ Oil Seal & Gasket Upgrades
The Z4’s N52B30 variant commonly suffers from valve cover gasket failures. Our reconditioned engines are rebuilt with upgraded gaskets and crankcase ventilation systems specifically adapted for the roadster’s heat soak profile.
-
✔ Direct Z4 Calibration Expertise
Unlike saloon applications of the N20 and N52, the Z4 sDrive28i has unique ECU mappings that stress different components. Our rebuilds integrate updated camshaft sensors (OEM 13627548994) and reprogrammed VANOS actuators suited for the Z4’s sport calibration.
-
✔ Warranty-Backed Z4-Focused Rebuilds
Every Z4 sDrive28i engine we supply is bench-tested under simulated load to mirror convertible driving conditions. Backed by a 12-month unlimited mileage warranty, our solutions are tailored exclusively for the Z4 platform-not generic BMW replacements.
Expert Tips for Choosing the Right Engine for Your BMW Z4 sDrive28i
BMW Z4 sDrive28i Engine Types Explained
- B48 2.0L turbocharged engines (2016-2019) common in F22/F23 Z4
- Reconditioned units often replace VANOS solenoids & timing chain
- Used Z4 sDrive28i engines often sold with 40k-60k verified mileage
- Rebuilt engines include updated oil pump gears for longer lifespan
BMW Z4 sDrive28i Replacement Engine Cost in the UK
- Used B48 engines start around £2,000-£2,500 with basic checks
- Reconditioned Z4 units range from £2,800-£3,200 with warranty
- Full rebuilds cost £3,500-£4,000 with VANOS & turbo refresh
- Save up to 60% vs dealership prices with trusted UK suppliers
Finding the Right BMW Z4 sDrive28i Engine
- Check VIN for B48B20B engine code unique to 2016-2019 models
- Z4 sDrive28i F22/F23 chassis engines differ from 320i calibration
- Ensure correct ECU mapping - Z4 uses sport-tuned calibration
- Avoid mixing F22 with later G29 mounts, they are incompatible
BMW Z4 sDrive28i Petrol vs Diesel Engines
- The Z4 sDrive28i is petrol-only with B48 2.0L turbocharged unit
- No diesel option - avoids N47 timing chain issues seen in 118d
- ULEZ compliant - ideal for London drivers avoiding penalties
- Delivers ~245 hp with fewer carbon build-up issues vs older N20
Quality Assurance & Warranty
- B48 rebuilds replace timing chain kit
- Updated VANOS solenoids fitted to improve cold start response
- Turbo wastegate actuators checked & recalibrated for Z4 use
- All engines backed by 12m unlimited mileage warranty in the UK
Compare & Save on BMW Z4 sDrive28i Engines
- Compare rebuilt vs used Z4 units to save up to 60% vs dealers
- Check suppliers replace oil pump drive gears (OEM 11417598823)
- Look for proof of cylinder head pressure testing in rebuilds
- Engine Finders offers UK-wide supply & fit for added savings
BMW Z4 sDrive28i Engine Works: How Experts Rebuild Engines
When your engine fails, BMW Z4 sDrive28i engine works can restore performance at a fraction of the cost of new. From teardown to rebuild, specialists follow precise steps.
🔧 Step 1: Engine strip-down with B48-specific locking tool (OEM 118620).
🧩 Step 2: Inspect timing chain wear - common weak point in 2016-2018 Z4 units.
Step 3: Replace VANOS solenoids & seals (OEM 11367841017) to fix oil leaks.
Step 4: Turbocharger rebuilt with updated wastegate actuator for Z4 spec.
🛠️ Step 5: Cylinder head skimmed, new head bolts torqued to 25Nm + 90°.
✅ Step 6: Bench test ECU calibration specific to Z4 sDrive28i sport tune.