# Service bulletins for the 2021 BMW R 18 Classic

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

12 bulletins from NHTSA, as of 2026-10-19.

- [MC330322](/bulletins/11017294.md), 2025-04-29, Service campaign: POWER TRAIN. The taper spline between the driveshaft and the rear drive assembly were assembled dry on certain vehicles. This could result in rust to form.
- [B611305](/bulletins/10249027.md), 2024-02-01, Service bulletin: ELECTRICAL SYSTEM. The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery. This document covers important information for the dealer on how to handle “discharged battery” complaints.
- [M410122](/bulletins/10227578.md), 2022-12-12, Service bulletin: STRUCTURE:BODY:ROOF AND PILLARS; STRUCTURE. The body seam on the rear upper left of the body may not have been completely sealed, causing a water leak.
- [MC330322](/bulletins/10225135.md), 2022-10-31, Service bulletin: POWER TRAIN:DRIVELINE:DRIVESHAFT. The taper spline between the driveshaft and the rear drive assembly were assembled dry on certain vehicles. This could result in rust to form.
- [SIB710222](/bulletins/10218394.md), 2022-08-22, Service bulletin: EQUIPMENT; ENGINE AND ENGINE COOLING; EQUIPMENT:OTHER:LABELS. SERVICE ACTION: REPLACE EMISSION CONTROL INFORMATION
- [SIB710222](/bulletins/10214998.md), 2022-07-05, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. REPLACE EMISSION CONTROL INFORMATION.
- [MC060321](/bulletins/10206760.md), 2022-01-24, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM:WIRING. On K34 and K35 motorcycles, the battery must be removed to access and test the wiring at the DME \(engine control unit\).
- [MC130721](/bulletins/10204671.md), 2021-12-13, Service bulletin: EQUIPMENT:MECHANICAL. Customer may complain of a noisy fuel pump. The drive frequency of the fuel pump may cause a resonance.
- [MC610821](/bulletins/10201170.md), 2021-09-07, Service bulletin: ELECTRICAL SYSTEM. When diagnosing fault codes \(0x3A13D7, 0x3A13D9\), technicians erroneously condemn the electronic throttle grip, which analyses show is rarely the culprit.
- [MC630221](/bulletins/10200266.md), 2021-08-09, Service bulletin: EXTERIOR LIGHTING:TURN SIGNAL. Brackets holding the front LED turn signals are susceptible to rust with exposure to moisture.
- [MC630121](/bulletins/10200265.md), 2021-08-09, Service bulletin: EXTERIOR LIGHTING. In very rare instances, only the dipped beams \(low beams\) may be functional; during that time, other ligght functions are no longer available
- [MC000621](/bulletins/10200254.md), 2021-08-09, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE. BMW Motorrad USA is pleased to announce the launch of the BMW Motorrad Ultimate Care Program, effective June 23 , 2021. Three different plans will be offered for consumer bikes, as well as two Authority\-specific plans. Model\-year 2020 and newer BMW Motorcycles from the time of retail up to the first scheduled ?break in? service are eligible.

JSON: [/v1/vehicles/2021_bmw_r-18-classic/bulletins](/v1/vehicles/2021_bmw_r-18-classic/bulletins)

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