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Dedicated Subsystem WorkbenchPlatform Gen: 2021–2026

2026 BMW R 18 / Classic / Bagger / Transcontinental Charging System, Stator AC Output & Battery Health

Stator 3-phase AC voltage at 5,000 RPM, coil resistance, regulated DC voltage, battery code 12V / 26Ah AGM maintenance-free, CCA rating, and multimeter charging diagnostic steps for 2026 BMW R 18 / Classic / Bagger / Transcontinental.

Technical PassportOEM VERIFIED
Engine
1802cc
Cooling
Not Available
Final Drive
Shaft
Engine Oil
4.2 L (4.4 US qt)
Spark Plug
NGK MAR8D-JDS (Dual ignition, 4 plugs)
Front Tire
120/70R19 (or 130/90B16)
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Gen 2021–2026

Factory Platform Compatibility: All workshop fluid capacities, maintenance milestones, torque specifications, and consumables on this specification sheet are factory-identical across model years 2021 through 2026.

Select Model Year:(Active: 2026)
6 Production Years (2021–2026)
Suggested Items3 Verified Workshop Consumables Available for this Job
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3-Phase Charging System & Battery Diagnostic Flowchart

Yuasa & OEM Standards
Multimeter troubleshooting protocols, cold cranking amps (CCA) ratings, 3-phase stator AC outputs, and regulator-rectifier health verification.
Shop 12V / 26Ah AGM maintenance-free Batteries
OEM Battery Code
12V / 26Ah AGM maintenance-free
Cold Cranking Rating
Not Available
Capacity (10HR Rate)
Not Available
Regulated Output Spec
Key-OFF Parasitic Limit
V DC
Multimeter Test Diagnosis
Enter your multimeter terminal reading on the left to view instant diagnostic interpretations and recommended workshop actions.
OEM Factory AGM BatteryOEM Replacement
Dimensions: • Weight: Not Available. Pre-filled absorbed glass mat technology engineered for heavy vibration resistance.
Lithium LiFePO4 UpgradeUp to 70% Lighter
Features built-in RE-START jump starting reserve. Never stranded by dead lights: press the restart button on the top terminal to crank the motorcycle without jumper cables.
Smart Maintainer SpecBattery Life Extension
Standard Charge Rate: . Automated desulfation & float maintenance ensures full capacity retention during off-season winter storage.
Recommended Parts: •

BMW Diagnostic Fault Codes & Multimeter Bench Testing

FI & OBD2 Decoder
Authentic factory ECU fault codes, sensor resistance specifications, and harness pinout troubleshooting.
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Code P0105Manifold Absolute Pressure (MAP)
MAP sensor electrical circuit malfunction / range error.
Test: Verify 5.0V VRef and 2.5-3.0V signal key-on engine-off.
Code P0115Engine Coolant Temp (ECT)
ECT sensor circuit open, short, or out of plausible range.
Test: Measure NTC thermistor: ~2.5 kΩ at 20°C, 300 Ω at 80°C.
Code P0335Crankshaft Position Sensor (CKP)
CKP sensor electrical circuit or missing pulse teeth.
Test: Measure VR magnetic pickup coil resistance (typically 200-600 Ω).
Looking for other error codes, sensor pinouts, or OBD2/Euro 5 codes?

Official NHTSA Safety Recalls & Technical Bulletins

0 Open Campaigns (Clean)
U.S. Department of Transportation compliance database (Title 49 U.S.C. Chapter 301).
Verify VIN on NHTSA.gov
No Active Federal Safety Recalls Reported
The U.S. DOT National Highway Traffic Safety Administration (NHTSA) records zero open safety recall campaigns for the 2026 BMW R 18 / Classic / Bagger / Transcontinental platform. Always check your individual 17-digit VIN at an authorized dealership or via NHTSA.gov for individual recall completions.
OEM Workshop Archives

Official Factory Service Bulletins & Field Updates

1 Documented Bulletin
Bulletin #BMW-24V716Safety Recall SIB 61 09 24: R 18 Big Boxer Reverse Gear Control Unit Waterproofing
Source: BMW_Recall24V716_RCRIT-24V716-8582.pdf
Mandated Torques:Torque: 56 N·m (41 lbf·ft) (Transmission Reverser Housing Screws - M10 Grade 10.9 with Loctite 243)Torque: 8 N·m (71 in·lb) (Reverser Control Module Screws - M6 x 25)Torque: 8 N·m (71 in·lb) (Battery Negative Ground Terminal Screw)Torque: 56 N·m (41 lbf·ft) (Right Footrest Bracket Mounting Bolts)
Consumable Specs:Loctite 243 Medium-Strength Threadlocker (83 19 2 210 339)Weatherproof Protective Connector Cap (61 13 8 384 550)
Genuine Part Numbers:07 12 9 908 52761 35 7 105 88961 13 8 384 550
NHTSA Recall 24V-716SIB 61 09 24 / Campaign 0000611900

BMW R 18 Big Boxer Reverse Gear Control Unit Assembly

Electric reverser control unit moisture sealing, connector deactivation protocol, and 56 N·m casing torque specifications.

Safety Recall RemedyCover 56 N·m / M6 8 N·m
1802cc BIG BOXER TRANSMISSION CASINGEXPOSED SHAFTREVERSER UNITDISCONNECT CAPCHEESE HEAD SCREWS (2x)56 N·m (41 lb-ft)Grade 10.9 w/ Loctite 243DEACTIVATION CAP PROTOCOLAIR Instruction 00 60 437MODULE SCREWS (M6 × 25)8 N·m (71 in-lb)

Click any element above for AIR instruction 00 60 437 procedure, Grade 10.9 threadlock specs, and IP67 weather-capping.

Factory Tightening TorquesService Manual

Transmission Reverser Cover Screws (M10 × 1.5, Grade 10.9)56 N·m (41 lb-ft)
Replace screw or apply Loctite 243 medium threadlocker
Reverser Control Module Screws (M6 × 25)8 N·m (71 in-lb)
Fastens control unit to transmission rear face
Battery Negative Ground Lead Screw8 N·m (71 in-lb)
Disconnect negative ground terminal before servicing reverser wiring
Right Footrest Bracket Mounting Bolts (M10)56 N·m (41 lb-ft)
Cruiser footrest bracket to frame chassis
Exhaust Heat Shield Clamp Screws4.5 N·m (40 in-lb)
Stainless worm-drive band clamp

Explore Other Subsystems for this 2026 BMW R 18 / Classic / Bagger / Transcontinental

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Subsystem Guide/torques

Fastener Torques

Engine drain plug, axle spindles, caliper mounts, triple clamp pinch bolts & thread lubrication derating guide.

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Subsystem Guide/fluids

Fluids & Capacities

Oil: 4.2 L (4.4 US qt) • Coolant: N/A • Brake: BMW Motorrad DOT 4

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Subsystem Guide/fuses-relays

Fuses & Relays

Main: N/A • Location: N/A

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Subsystem Guide/compression

Compression & Leakdown

Ratio: N/A

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Subsystem Guide/valves

Valve Clearances

Intake: N/A mm • Exhaust: N/A mm

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Subsystem Guide/fuel-delivery

Fuel Delivery & TB Sync

Idle: N/A • Rail Pressure: N/A • Vacuum: N/A

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Subsystem Guide/tires

Tires & Gearing

Front: 120/70R19 (or 130/90B16) • Rear: 180/65B16

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Subsystem Guide/suspension

Suspension & Sag

Front Travel: N/A • Rear Travel: N/A

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Subsystem Guide/maintenance

Maintenance Schedule

Oil: N/A • Valves: N/A • Plugs: N/A

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