Expansion Tank Cap – BMW 1 / 2 / 3 / 4 / 5 / 6 / 7 / X1 / X3 / X4 / X5 / X6 Series – Various

Compatible with BMW 1 Series M Coupé 2011 (E82M; N54 twin-turbo; six-speed manual; South Africa official-market specification).

Specification:
- Expansion Tank Cap - BMW 1 / 2 / 3 / 4 / 5 / 6 / 7 / X1 / X3 / X4 / X5 / X6 Series - Various; retailer catalog reference 204110040.

Fitment Note:
- Retailer places this component in its E82 135i/N54 catalog. The 1M shares the N54 powertrain or E82 body architecture, but BMW OE supersession and options remain VIN-controlled.

OEM Reference:
- 17 11 7 639 020 / 17 11 7 521 071

Price Research:
- Brand-new listed price: R131.91 ZAR; checked 2026-08-31.
- Retailer catalog SKU 204110040; published availability: BackOrder.
- Source: https://euroautoparts.co.za/shop/e81-3-door-1-series-04-11/bmw-e81-116i/bmw-e81-116i-cooling/expansion-tank-cap-bmw-1-2-3-4-5-6-7-x1-x3-x4-x5-x6-series-various-detail.html

Aftermarket Product Notice:
- Unless explicitly identified as BMW Genuine, this is a third-party replacement or performance product. Confirm compatibility by VIN and existing part before purchase.

Confirm the exact vehicle configuration before installation. Professional installation is recommended where required.

Warranty terms depend on the selected condition and supplier policy.

Delivery time and return eligibility depend on destination, stock location and order type.