Reconditioned BMW Série 1 3.0i Gearbox – 6-Speed Manual – Ref. GS6-45BZ-THD4

Reconditioned BMW Série 1 3.0i Gearbox – GS6-45BZ-THD4

This reconditioned gearbox for the BMW Série 1 3.0i, paired with the N52B30 engine (2996 cm³), carries the reference GS6-45BZ-THD4. The reconditioning of this 6-speed manual gearbox follows a rigorous process: the unit is fully stripped down, every component is cleaned and inspected both visually and dimensionally, wear parts such as gears, synchros, bearings and seals are replaced as required, and the assembly is rebuilt to manufacturer tolerances before a final bench test. This ensures the gearbox performs to original specification before dispatch to your garage.

Signs That Your Gearbox Needs Replacing

On a BMW Série 1 3.0i fitted with this 6-speed manual gearbox, several symptoms point to advanced internal wear and call for prompt replacement:

• Stiff or notchy gear changes, accompanied by crunching or abnormal resistance
• Gears jumping out on their own, particularly third or fifth
• Judder or vibration felt through the clutch during gear changes
• A bearing noise audible in neutral with the engine running
• Difficulty engaging second gear from cold – a common issue on this engine
• Unusual vibrations transmitted through the gear lever whilst driving

Exchange Basis – No Waiting for a Unit

This gearbox is sold on an exchange basis, meaning the reconditioned GS6-45BZ-THD4 unit is dispatched before the old unit is collected. The garage receives the rebuilt gearbox first, avoiding any prolonged time with the vehicle on the ramp. The old gearbox – with its casing intact – is only collected after delivery and fitting of the new unit. Return of the old unit is required in accordance with our Terms and Conditions, and ensures the exchange is completed smoothly for both the garage and the customer.

Compatibility

This reconditioned gearbox, reference GS6-45BZ-THD4, is compatible with BMW Série 1 3.0i models fitted with the N52B30 petrol engine, with an engine capacity of 2996 cm³. It is the 6-speed manual gearbox fitted as standard to this specific model and engine combination.

Warranty and Payment

This rebuilt gearbox is covered by a 24-month parts warranty, subject to fitting by a qualified professional. Payment for this GS6-45BZ-THD4 gearbox can be spread over multiple instalments – pay in up to 10 instalments – to make your purchase more manageable.

EDEN BOITES supports you every step of the way, from your initial quote through to collection of the old unit.