BMW Z8 Engine Replacement - Rebuilt & Reconditioned Units from £8,500

BMW Z8 Engines for Sale | Engine Finders

Need a reliable BMW Z8 replacement engine? Common reasons include VANOS oil leaks and rod bearing wear in the S62B50, and valve cover gasket leaks.

BMW Z8 Replacement Engines

Produced as the E52 Z8 from 2000-2003, the Z8 was fitted with BMW’s S62B50 4.9L double-VANOS V8 tuned specifically for the roadster’s gearbox and weight balance. Early-production cars (pre-March 2000) used an earlier piston-ring spec; BMW and workshop notes record a piston-ring update introduced in March 2000 to address oil control differences between early and later builds. Across its short life the Z8 developed recurring S62 themes: valve-cover and timing-case oil leaks, VANOS actuator wear and occasional rod-bearing distress on high-mileage units. BMW technical bulletins and club workshop threads note seal and VANOS attention as primary maintenance items for the Z8 S62 fitment. Chassis code: E52 (2000-2003). Because the Z8 uses the S62 with Z8-specific ECU calibration and gearbox pairing, replacement engines must match Z8 tuning to avoid drivability and oil-management problems unique to this variant.

BMW Z8 Models & Engines Codes

The Z8’s engine fitment is dominated by the S62 family. Below are the S62 variants and Z8-specific behaviours you need to know when searching for a BMW Z8 replacement engine.

• S62B50 (standard Z8 fitment, 4.9L): The factory S62B50 fitted to the Z8 (E52, 2000-2003). In the Z8 this engine uses Z8-specific ECU calibration and a unique gearbox pairing; common Z8 failures include VANOS solenoid leakage and valve-cover oil seepage. Performance in the Z8 is tuned for smooth mid-range torque rather than the M5’s sharper top-end behaviour.
• S62B50 (pre-March 2000 spec): Early S62B50 units in first-run Z8s used a different piston-ring specification documented in workshop records; these early engines are more prone to slightly higher oil consumption if not serviced to the revised spec.
• S62B50 (post-March 2000 update): Updated piston rings and minor sealing changes reduced oil consumption and improved longevity when maintained correctly; this sub-variant is preferred for replacement to avoid repeat oil-control repairs.
• S62 (family / test-batch references): Some pre-production or test Z8s referenced S62 calibration differences (owner forum and dealer notes). When sourcing a replacement, ensure the engine’s VIN/calibration history matches Z8 ECU/gearbox expectations to prevent mismatch issues.

While S62B50 appears in other BMWs (notably the E39 M5), in the Z8 the S62’s VANOS settings, piston-ring update status and sealing kit requirements differ - buy a unit that explicitly lists E52/Z8 compatibility or has been recalibrated to Z8 specifications to avoid unique wear patterns and drivability faults.

Buy Used and Second-Hand BMW Z8 Engines

Z8 owners choosing between used, reconditioned, rebuilt and remanufactured engines should prioritise Z8-calibrated units. A used S62B50 from a non-Z8 M5 will physically fit but often needs ECU and torque-converter matching for correct Z8 behaviour. Reconditioned engines should include piston-ring and VANOS service where required; rebuilt or remanufactured engines are recommended when rod bearings or internal wear are present because they allow replacement to Z8-specific tolerances.

• Used: cheapest but check oil-consumption and VANOS history
• Reconditioned: seals, gaskets and VANOS refreshed - good mid-ground
• Rebuilt: internal refresh (bearings/pistons) for higher-mileage cores
• Remanufactured: best for concours or long-term reliability with Z8 calibration

For the Z8, remanufactured or properly rebuilt S62B50 units are often the safest long-term value given the car’s collectible status.

BMW Z8 Engines in Stock

Typical reconditioned S62B50 units for the Z8 include replacement of known weak parts and Z8-specific checks: upper timing case and cover gaskets (OE timing gasket set 11140001186), valve cover gaskets (OE references used in workshops include 11120001269 and equivalents), and timing chain guides/tensioner renewal (timing guide reference used by specialists: 11311406280 / tensioner 11311406261). Z8 engines in stock are often fitted with new piston-ring packs where earlier spec engines are present.

• Upper timing case gasket set (OE 11140001186)
• Valve cover gasket sets (OE references used per cylinder bank)
• Timing chain guide & tensioner kit (e.g., 11311406280 / 11311406261)
• VANOS seals and solenoid inspection/replacement

Each Z8 unit undergoes compression and oil-pressure testing and is verified for correct ECU/gearbox pairing or supplied with notes for ECU recalibration where needed - essential steps because Z8 calibration differs from M5 fitments.

Warranty for Replacement BMW Z8 Engines

Rebuilt and reconditioned S62B50 engines for the Z8 typically carry a 12-month warranty from the supplying specialist. Note model-specific warranty considerations: timing-case and VANOS-related components may have limited coverage if the engine shows wear patterns associated with early-spec piston rings or poor oil maintenance.

• 12-month standard warranty for rebuilt/reconditioned units
• Major component coverage: block, crank, rods, pistons (subject to supplier terms)
• Limited coverage often applies to timing guides/VANOS when pre-existing wear is documented

Engine Finders is a price comparison platform; all warranties are provided by the supplying engine specialist and vary by build specification and declared condition.