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Service bulletins for the 2014 BMW M6

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.

323 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
B1116142022-05-16. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING. This bulletin outlines the procedure for checking the engine timing chains for wear, and should be completed in conjunction with SI B11 06 14, "N63 Customer Care Package." The N63CCP and N63 Engine Check the Timing Chain are NOT mandatory Technical Campaigns or Recalls. They should be completed only based on parts availability, workshop capacity, and the customer's schedule.
B0105182020-03-16. Service bulletin. ENGINE. LIMITED WARRANTY EXTENSIONTO 10 YEARS/120000 MILES: This Service Information Bulletin replaces SI B01 05 18 dated July 2019. Engine starts poorly (hard starting) rough idle and misfires. The Service Engine Soon (MIL) lamp is on.
B1223192019-08-19. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; EQUIPMENT:ELECTRICAL. DIAGNOSTIC HINT: CATALYTIC CONVERTER INSPECTION AFTER LOSS OF CRANKSHAFT SIGNAL. In certain situations when the crankshaft position signal is lost while driving the malfunction indicator lamp (MIL) and an engine malfunction check control message (CCM #29) may be displayed. The engine may run roughly or with reduced power.
B1112162019-08-19. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. The crankcase ventilation hoses may become brittle and break when they come in contact with hot engine components. One or more of the crankcase ventilation hoses are not FPM (fluoroelastomer) rubber material. The FPM rubber material is engine heat resistant. Or The plastic corrugated hoses are not fitted with the self-locking spacers. The self-locking spacers maintain an air gap between the hoses and the hot engine components.
B0121182019-07-22. Service bulletin. EQUIPMENT; ENGINE. N63 ENGINE: OIL CONSUMPTION CLASS ACTION SETTLEMENT DIAGNOSIS AND REPAIR PROCEDURES. While engine oil consumption may create a customer inconvenience in the short term it should not cause any drivability problems that would prevent normal day-to-day operational use of the vehicle.
B1219192019-06-24. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Service Information May 2019 Engine Electrical Systems B12 19 19 Technical Service. On the affected vehicles a DME software error prevents the Check Control Message (CCM) "Low Engine Oil Level" to be displayed in instrument cluster (Kombi) when the engine oil level drops below the minimum level.
B6104192019-05-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. VEHICLE DOES NOT START BATTERY TOTALLY DISCHARGED This Service Information bulletin replaces SI B61 04 19 dated March 2019.
B0124182019-05-20. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE. On the affected vehicles the CBS engine oil service interval has been reduced to 1 year/10000 miles to make these vehicles consistent with all other N63x engine equipped vehicles.
B0124182019-05-20. Service bulletin. ENGINE. On the affected vehicles the CBS engine oil service interval has been reduced to 1 year/10000 miles to make these vehicles consistent with all other N63x engine equipped vehicles.
1105132018-12-17. Service bulletin. ENGINE AND ENGINE COOLING. Turbocharger Coolant Return Pipe Leaking. A Check Control message for low coolant level is displayed. There are traces of coolant leaking in the engine compartment at the turbochargers. The auxiliary coolant pump for the turbochargers does not run during an MSA shutdown. Frequent MSA starts and stops could result in excessive temperatures in the cooling circuit of the turbochargers.
B1205162018-12-10. Service bulletin. ENGINE; FUEL SYSTEM, GASOLINE. "N55 - ENGINE MALFUNCTION WARNING DUE TO VAPOR FORMING IN THE FUEL SYSTEM This Service Information bulletin supersedes SI B12 05 16 dated April 2016. The Engine ""Drivetrain Malfunction"" Check Control warning is displayed and the Service Engine Soon (MIL) Lamp may also be on. In areas where winterized fuel is used, this situation may occur after prolonged periods of engine idling or ""stop and go"" driving. Additional symptoms that may be present: rough running poor engine performance difficulty in starting the engine. Either or both of the following fault codes can be stored in the DME. 11A002 - Fuel high pressure, plausibility: Pressure too low 11AC02 - Fuel high pressure, plausibility, cold start: Pressure too low In addition any of the following faults may also be stored: 119404 - Rail pressure sensor, signal: Permanently stuck 118001 - Mixture control: mixture too lean 118401 - Mixture control: mixture too lean; large deviation Vapor formation in the fuel system from fuel quality characteristics of certain winter fuel blends along with high engine compartment temperatures."
B1117152018-12-10. Service bulletin. ENGINE; EQUIPMENT. "N63, N63TU and N63R Engines: Upper Oil Pan Removal and Installation Repair Instructions This Service Information bulletin supersedes SI B11 17 15 dated August 2015.. INFORMATION When removing and/or installing the engine upper oil pan assembly, the oil pan can sustain damage if this operation is not performed correctly. Before loosening or tightening the engine upper oil pan refer to the newly released Repair Instruction 11 13 010 ""Removing and installing/replacing upper oil sump"" in ISTA/D 3.55.11 or higher for the proper procedures. IMPORTANT: The new repair instructions will state one of the following before reinstalling the upper engine oil pan. ""All threads must be cleaned with screw tap"" Or ""Clean all threads with screw tap. Order number 81 43 0 402 559"" Or ""Clean all threads with a thread cutter"". The current repair instruction terminology will be modified to include this information."
B1205162018-12-10. Service bulletin. ENGINE. "N55 - Engine Malfunction Warning Due to Vapor Forming in the Fuel System. The Engine Drivetrain Malfunction"" Check Control warning is displayed and the Service Engine Soon (MIL) Lamp may also be on. In areas where winterized fuel is used, this situation may occur after prolonged periods of engine idling or ""stop and go"" driving. Additional symptoms that may be present: rough running poor engine performance difficulty in starting the engine. Either or both of the following fault codes can be stored in the DME. 11A002 - Fuel high pressure, plausibility: Pressure too low 11AC02 - Fuel high pressure, plausibility, cold start: Pressure too low In addition any of the following faults may also be stored: 119404 - Rail pressure sensor, signal: Permanently stuck 118001 - Mixture control: mixture too lean 118401 - Mixture control: mixture too lean; large deviation Vapor formation in the fuel system from fuel quality characteristics of certain winter fuel blends along with high engine compartment temperatures."
1217132018-12-03. Service bulletin. ENGINE; POWER TRAIN. N55: Engine Difficult to Start at Cold Ambient Temperatures. The complaint may include any of the following symptoms: * The engine stalls immediately after a cold start before driving away * The engine may run roughly or misfire after a cold start * The engine does not start cold or may take several attempts * To assist starting when cold, the accelerator may need to be depressed slightly and the idle speed raised for a few seconds so the engine does not stall This can occur most frequently at outside ambient temperatures between -15°C and + 15°C. It is possible that the Service Engine Soon (MIL) lamp is on with misfire fault(s) stored, but it is equally possible that there will be no faults stored in the DME. Unfavorable DME software Cold start or idling problems may arise due to poor fuel quality. The use of summer fuel during cold outside temperatures may also lead to such problems.
1307122018-12-03. Service bulletin. ENGINE; FUEL SYSTEM, GASOLINE. N63 and S63 Engine: High-pressure Fuel Injector Replacement Procedures. The customer complains that one of the following scenarios has been encountered while operating the vehicle: * During a cold start in the morning, the engine runs very roughly and the Service Engine Soon lamp is illuminated. * During a hot start, the engine runs very roughly and the Service Engine Soon lamp is illuminated. ??While driving or idling, the engine will misfire and the Service Engine Soon lamp is illuminated. * Various misfire faults are stored in DME fault memory. CAUSE An internal failure of the high-pressure fuel injector can lead to incorrect operation.
1216112018-12-03. Service bulletin. ENGINE; POWER TRAIN. N55 Engine Failsafe - FC 120308 Boost Pressure Control, Plausibility: Pressure Too Low Stored in DME Fault Memory. INFORMATION The customer complains the SES is illuminated and the engine has reduced power (engine failsafe mode).
B1111172018-12-03. Service bulletin. ENGINE. ?ENGINE LEAK DIAGNOSIS ON TURBOCHARGED V8 ENGINES. When diagnosing an engine oil leak or a coolant leak on turbocharged V8 engines it is necessary to use a borescope to identify if the source of the leak is from under the turbochargers. Engine oil or coolant leaking from the bell housing area or the front timing chain cover area may be caused by the turbocharger itself, a turbocharger oil/coolant feed line or turbocharger oil/coolant return line. Do not remove the transmission and do not dissemble the engine before performing this inspection. If necessary, use engine oil leakage detection dye.
1307122018-11-26. Service bulletin. ENGINE; FUEL SYSTEM, GASOLINE. N63 and S63 Engine: High-pressure Fuel Injector Replacement Procedures. The customer complains that one of the following scenarios has been encountered while operating the vehicle: * During a cold start in the morning, the engine runs very roughly and the Service Engine Soon lamp is illuminated. * During a hot start, the engine runs very roughly and the Service Engine Soon lamp is illuminated. ??While driving or idling, the engine will misfire and the Service Engine Soon lamp is illuminated. * Various misfire faults are stored in DME fault memory. CAUSE An internal failure of the high-pressure fuel injector can lead to incorrect operation.
1210132018-11-26. Service bulletin. ENGINE. "S63T Engine Sets ""Charge Pressure Too High"" Fault Above 6,000 RPM. When accelerating, the engine may go into the failsafe program with the following fault stored: * 120208 - Charging pressure control, plausibility pressure too high The fault entry is set in the master DME when the engine speed exceeds 6,000 RPM. The following faults may also be stored: DME 1 (Master) * 120408 - Charging pressure control, deactivation: pressure build-up blocked DME 2 * 120908 - Charging pressure control, deactivation: pressure build-up blocked Unfavorable DME software"
1205132018-11-26. Service bulletin. ENGINE. Service Engine Soon Light Flashes with Throttle Adaptation Faults Stored. The EML light flashes with a check control message for reduced power output and/or the Service Engine Soon lamp (MIL) flashes. During the throttle valve adaptation (teach-in limit run), faults may occur due to signal voltage oscillations. This could lead to a termination of the teach-in routine or an incorrect value taught in at the lower limit. The following faults can be stored in the DME memory: E82, E84, E88, E89, E92, and E93 BN2000 vehicles * 28D0: throttle valve, adaptation: Initial adaptation, lower limit not taught in * 28D4: throttle valve, adaptation: Subsequent teach-in, lower limit not taught in * 28C4: throttle valve, adaptation: Emergency air position not adapted * 28A0: throttle valve angle - Intake manifold absolute comparison: pressure too high ??3166: Tank-ventilation system: fault F01, F02, F06, F07, F10, F12, F13, F30, F31, and ALPINA B7 BN2020 vehicles: * 101408: throttle valve, adaptation: Initial adaptation, lower limit not taught in * 107AE0: throttle valve, adaptation: Subsequent teach-in, lower limit not taught in * 101402: throttle valve, adaptation: Emergency air position not adapted * 101F01: throttle valve angle - Intake manifold absolute comparison: pressure too high ??190F08: Tank-ventilation system: fault Sensitivity of the throttle valve sensor (only affects parts installed during this production period)
B1101132018-11-26. Service bulletin. ENGINE. N63 AND N63T ENGINE: ENGINE OIL CONSUMPTION, ENGINE OIL TOP-UPS AND REFILL CAPACITY. Customers with one of the vehicles above may complain that the engine's oil consumption is "too high," resulting in engine oil top-ups and workshop visits to address the issue before the vehicle displays an engine oil service as being "due." When the vehicle's engine oil drops to the minimum level, a message will display in the vehicle advising the driver to "add 1 quart of engine oil." After topping up and continued operation, the "add engine oil" message may display again before an engine oil service is required and performed. CAUSE Engines that are fitted with a turbocharger, as part of their normal operation, will consume engine oil at a higher rate than a naturally aspirated engine (non-turbocharged engine). In this case, a "turbocharged" engine could require topping up of the engine oil more frequently.
1101132018-11-26. Service bulletin. ENGINE AND ENGINE COOLING. MService Action: Replace the Coolant Pump. Coolant is leaking from the coolant pump. CAUSE The coolant pump may develop cracks in the plastic housing. These cracks may result in a coolant leak.
B1101172018-11-26. Service bulletin. ENGINE. N63T AND S63T ENGINE: VALVE SEAL REPLACEMENT. This SI provides a new tool and a new procedure for the N63TU valve seals replacement. Please refer to the following applicable SIBs before replacing the valve seals. SI B11 07 11 - Turbocharger Failure: Oil Supply and Return Line Blockage and Proper Repairs SI B11 01 13 - N63 and N63TU Engines: Engine Oil Consumption, Engine Oil Top-ups and Refill Capacity SI B11 03 13 - Engine Oil Consumption (all models) SI B11 04 13 - N63TU Engine: Engine Oil Consumption If the valve seals are leaking, one of the following will help determine if the seals should be replaced. Smoke from the tailpipe when starting or aggressively accelerating and decelerating the engine Excessive engine oil consumption Spark plugs fouled with engine oil
6206132018-11-13. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE. Condition Based Service Due Date Is Reset to 01/2000. The Condition Based Service (CBS) due date is reset to 01/2000 and cannot be updated for: * Oil Service * Check Vehicle Note: No fault code is stored Software error in the Instrument Cluster.
1307122018-11-13. Service bulletin. ENGINE; FUEL SYSTEM, GASOLINE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS. N63 and S63 Engine: High-pressure Fuel Injector Replacement Procedures. The customer complains that one of the following scenarios has been encountered while operating the vehicle: * During a cold start in the morning, the engine runs very roughly and the Service Engine Soon lamp is illuminated. * During a hot start, the engine runs very roughly and the Service Engine Soon lamp is illuminated. While driving or idling, the engine will misfire and the Service Engine Soon lamp is illuminated. * Various misfire faults are stored in DME fault memory. CAUSE An internal failure of the high-pressure fuel injector can lead to incorrect operation.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.