Reconditioned Audi A3 1.8 TFSI Gearbox – S tronic 7 – Ref. LKN

Reconditioned S tronic 7 Gearbox – Audi A3 1.8 TFSI – Reference LKN

This reconditioned S tronic 7 gearbox is supplied for the Audi A3 1.8 TFSI, a 1,798 cm³ petrol engine, compatible with engine codes BYT, CDAA and CJSA; it carries reference LKN. Reconditioning involves a full strip-down of the gearbox, thorough cleaning and inspection of every internal component, replacement of all wear parts including gears, synchros, bearings and seals, then reassembly to manufacturer tolerances followed by bench testing before dispatch. This process ensures the unit performs to original factory standards before it is put back into service.

Signs that the S tronic 7 gearbox needs replacing

On this automated dual-clutch gearbox, several warning signs should alert the driver before a complete failure occurs:

• Jolts or juddering during gear changes, particularly when shifting from first to second
• Gearbox warning light illuminated on the dashboard, sometimes accompanied by a limp-home mode that limits engine revs
• Slipping or loss of drive felt under acceleration, unrelated to the engine itself
• Metallic noises or grinding sounds as a gear change approaches
• Refusal to engage a gear or delayed shifts, especially when cold or during the first few kilometres

Exchange basis: the S tronic 7 is dispatched before the old gearbox is returned

This gearbox, rebuilt to 0 km, reference LKN, is dispatched as soon as the order is confirmed — no need to return the old unit first. The old gearbox, provided the casing or block is intact, is only collected after the reconditioned unit has been delivered and fitted, so the garage is never left without a part and the vehicle is off the road for as short a time as possible. Return of the old gearbox is required, in accordance with our Terms and Conditions.

This gearbox is sold without the mechatronic unit: this component is not supplied or included in the sale, it is neither reconditioned nor tested, and the vehicle's original mechatronic unit must be reused by the customer. The dual-clutch assembly, however, is included and replaced as part of the reconditioning of this reference LKN.

Compatibility

This S tronic 7 gearbox, reference LKN, is suitable for Audi A3 1.8 TFSI vehicles fitted with engine codes BYT, CDAA or CJSA. We recommend checking the original reference on the vehicle's registration document or on the old gearbox before placing an order.

Warranty and payment

This gearbox is sold with a 12-month parts warranty, valid subject to fitting being carried out by a qualified professional. Payment can be spread over multiple instalments, in up to 10 instalments.

EDEN BOITES supports you from quote through to collection of the old unit.