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BMW Z4 3 0Si Engine Replacement - Rebuilt & Reconditioned Units from ÂŁ2,450

Compare BMW Z4 3 0Si 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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Engine Finders

BMW Z4 3.0si Engine Specialists

Expert Solutions for Every Z4 3.0si - 3.0si SE to 3.0si M Sport

Need a reliable replacement engine for your BMW Z4 3.0si?
Engine Finders specializes in Z4 3.0si engines with solutions for common N52B30 engine issues, including VANOS failures.

  • ✔ Z4 3.0si Engine Types - Addressing VANOS solenoid failures in N52B30 variants
  • ✔ Precision-Tuned for Z4 3.0si - Correct calibration for VANOS and Valvetronic systems
  • ✔ Z4 3.0si Pricing Advantage - Save up to ÂŁ1,000 on common engine repairs
Find Your Perfect BMW Z4 3.0si Engine Today!
BMW Z4 3.0si engine replacement specialists | Engine Finders

BMW Z4 3.0si 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 E85/E86 chassis codes.

BMW Z4 3.0si Rebuilt Engines

High-performance rebuilds with OEM parts addressing N52B30 VANOS issues.

BMW Z4 3.0si Remanufactured Engines

Fully stripped and rebuilt to factory specs for reliability.

BMW Z4 3.0si Reconditioned Engines

Thoroughly inspected and restored to working condition.

BMW Z4 3.0si Replacement Engines

Direct swap engines for minimal downtime and maximum reliability.

BMW Z4 3.0si Refurbished Engines

Cleaned, tested, and performance-tuned units for longevity.

BMW Z4 3.0si Used Engines

Affordable options with verified mileage and full history checks.

BMW Z4 3.0si 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.

Where to buy BMW Z4 3.0si replacement engine | Engine Finders

Why Choose Engine Finders for Your BMW Z4 3.0si Engine?

Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned BMW Z4 3.0si replacement engines. From the N52 B30 A to N52 B30 BF variants, whether you need a replacement due to VANOS timing issues or cooling system failures, Engine Finders makes it easy to locate the right engine, fast.

  • ✔ Z4 3.0si Timing Chain Solutions

    We replace the N52 B30 A/BF timing chain tensioner (OEM 11367546974) to prevent stretch issues unique to the 2003-2008 Z4 3.0si, ensuring smooth engine operation and avoiding costly failures.

  • ✔ Z4 3.0si VANOS System Expertise

    The N52 B30 variants in Z4 3.0si often suffer from VANOS actuator wear. Our UK-rebuilt engines include OEM-spec VANOS solenoids (11367547892) to restore proper valve timing and power delivery.

  • ✔ Cooling System Reliability

    We upgrade water pumps and thermostats (OEM 11517586917) to prevent overheating issues common in N52 engines within the Z4 3.0si (E85, 2003-2008), providing long-lasting UK-rebuilt solutions.

  • ✔ Injector & Fuel System Fixes

    Our reconditioned N52 B30 engines for Z4 3.0si include upgraded fuel injectors (OEM 13537546981) to prevent misfires and rough idling, addressing common variant-specific fuel delivery issues.

  • ✔ Oil Control and Consumption Management

    N52 B30 engines in Z4 3.0si sometimes experience higher oil consumption. Engine Finders provides rebuilt engines with updated oil control rings and UK-rebuilt components to resolve this without affecting performance.

  • ✔ Direct Fit & Warranty-Backed

    All Z4 3.0si engines are UK-rebuilt to OEM specifications, ensuring direct fit for E85 chassis and including a full warranty for peace of mind, addressing model-specific component failure points.

  • ✔ Variant-Specific Diagnostics

    Unlike other N52 applications, our Z4 3.0si engines undergo detailed diagnostics for VANOS, timing chain, and cooling failures unique to this model, ensuring reliability for UK owners.

  • ✔ Expert Support for Z4 3.0si Owners

    Our specialists provide guidance on installation, maintenance, and warranty claims specifically for the Z4 3.0si, leveraging BMW Service Bulletin SWE-18-01 to tackle timing chain and VANOS concerns efficiently.

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.

4.9/5
"Thanks to Engine Finders, I saved over ÂŁ1,200 on my engine!" - Jimmy, London
"Got three quotes within an hour and chose the best deal easily." - Pete, Leeds
"Engine Finders made the whole process quick and painless." - Tom, Manchester
"Wasn't sure what I needed, but their team helped every step of the way." - Sophie, Birmingham
"Fast turnaround and excellent aftercare, highly recommend Engine Finders." - Ahmed, Bradford
"Best car-related experience I've had in years. Awesome guys, honestly!." - Liam, London
Get Your Custom BMW Quote Today

BMW Z4 3.0si Engines for Sale | Engine Finders

Engine Finders offers UK drivers vetted, reconditioned BMW Z4 3.0si replacement engines. From N52 B30A to N52 B30B, we resolve common VANOS and cooling failures specific to the Z4 3.0si.

BMW Z4 3.0si Replacement Engines

The Z4 3.0si (E85, 2005-2008) introduced the naturally aspirated N52 B30 engine, offering smoother power delivery. Owners commonly face timing chain tensioner wear (OEM 11367546974) and VANOS actuator issues. Our UK-rebuilt engines address these concerns following BMW Service Bulletin SWE-18-01.

BMW Z4 3.0si Models & Engines Codes

The Z4 3.0si uses the following engines:

  • N52 B30A: 3.0L petrol, timing chain tensioner wear, E85 2005-2006
  • N52 B30B: 3.0L petrol, VANOS actuator failures, E85 2006-2008
  • N52B30 (updated): Enhanced oil control rings for reduced consumption, E85 2007-2008

Each engine is tested for performance and reliability, ensuring compatibility with Z4 3.0si chassis and production years.

Buy Used and Second-Hand BMW Z4 3.0si Engines

Choose from used, reconditioned, rebuilt, or remanufactured engines based on Z4 3.0si requirements.

  • Used engines: Cost-effective, minor wear (E85 chassis)
  • Reconditioned: Fully tested, timing chain and VANOS serviced
  • Rebuilt/Remanufactured: All components renewed, ideal for high-mileage 3.0si

Each engine undergoes UK-standard inspection for quality assurance before delivery.

BMW Z4 3.0si Engines in Stock

Our stock includes fully tested N52 B30A/B engines ready for installation.

  • Timing chain tensioner (OEM 11367546974)
  • VANOS actuators (OEM 11367547892)
  • Cooling system components upgraded
  • Oil control rings renewed

Each engine is dyno-tested to guarantee performance and reliability for UK Z4 3.0si owners.

Warranty for Replacement BMW Z4 3.0si Engines

Standard 12-month warranty covers reconditioned and rebuilt engines. Timing chain components for N52 B30 engines are included, following manufacturer guidelines.

  • 12-month comprehensive coverage
  • Installation support included
  • UK-standard warranty procedures

Engine Finders acts as a marketplace; warranty depends on supplier terms. Timing chain-specific coverage reflects known design limitations.

Where to buy BMW Z4 3.0si replacement engine | Engine Finders

Expert Tips for Choosing the Right Engine for Your BMW Z4 3.0si

BMW Z4 3.0si Engine Types Explained

  • N52B30 naturally aspirated engines (2006-2008) standard choice
  • Reconditioned N52B30 engines fix VANOS wear and oil leaks
  • Used N52B30 units for low-mileage Z4 3.0si models
  • Rebuilt engines recommended for high-mileage 3.0si with camshaft wear

BMW Z4 3.0si Replacement Engine Cost in the UK

  • N52B30 engines cost ÂŁ2,800-ÂŁ3,200 for Z4 3.0si (2006-2008)
  • Reconditioned units save ÂŁ500 compared to brand-new engines
  • Used low-mileage engines priced ÂŁ2,400-ÂŁ2,600 in UK market
  • Engine Finders compares verified suppliers for best Z4 3.0si pricing

Finding the Right BMW Z4 3.0si Engine

  • N52B30 engines (VINs ending 3.0si) specific to Z4 3.0si 2006-2008
  • Check F25 chassis compatibility to avoid mount issues
  • Inspect VANOS units for wear and leaks before purchase
  • Ensure camshaft and chain guides are updated in rebuilt engines

BMW Z4 3.0si Petrol vs Diesel Engines

  • Z4 3.0si only comes with petrol N52B30 engine
  • High-revving petrol offers smooth power and performance
  • Diesel not available, so city vs highway efficiency is petrol-based
  • Perfect for spirited driving and weekend track use

Quality Assurance & Warranty

  • Timing chain guides and VANOS units replaced during rebuild
  • OEM parts used for pistons, gaskets, and oil pump
  • 12-month warranty covers N52B30 reconditioned engines
  • Engine Finders ensures dyno testing before delivery

Compare & Save on BMW Z4 3.0si Engines

  • Compare verified UK suppliers for Z4 3.0si engines
  • Choose engines with updated VANOS units to save future costs
  • Check mileage and service history before buying used engines
  • Engine Finders highlights best deals for Z4 3.0si models

BMW Z4 3.0si Engine Works: How Experts Rebuild Engines

When your engine fails, BMW Z4 3.0si engine works can restore performance at a fraction of the cost of a brand-new engine.

Step 1: Full diagnostic using BMW-specific OBD tools for N52B30

Step 2: Strip engine, inspecting VANOS and timing chain guides

Step 3: Replace worn parts with OEM pistons, gaskets, and tensioners

Step 4: Clean and pressure-test cylinder heads for leaks

Step 5: Reassemble engine with proper torque specs for N52B30

Step 6: Dyno testing to verify power delivery and oil pressure

Get Your BMW Z4 3.0si Engine Quote

Frequently Asked Questions - BMW Z4 3.0si Engines

How much does a BMW Z4 3.0si N52B30 engine replacement cost in the UK?

Reconditioned pricing:
• £2,800-£3,200 for N52B30 engine (Z4 3.0si, 2006-2008)
• Includes updated VANOS and timing chain guides
• 12-month warranty included
• Save up to 40% vs dealer through Engine Finders

What are common timing chain issues in Z4 3.0si N52B30 engines?

The N52B30 in Z4 3.0si often develops:
• Worn timing chain guides causing rattling noise
• VANOS sprocket wear leading to rough idle
• Requires replacement with OEM parts 11367585449
• Engine Finders recommends preventive rebuilds to avoid failure