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Service bulletins for the 2014 Porsche 911

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.

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

By type

By component

By trouble code

Bulletins, newest first
122-R7L3B-092019-09-23. Service bulletin. SERVICE BRAKES, HYDRAULIC. Technical bulletin detailing clicking noise from the front Carbon Ceramin Brakes (PCCB) on 911 Turbo and Turbo S models in the 991 generation. Bulletin advises dealers to submit a Technical Support request immediately due to the customer sensitivity of the issue.
122-T4C3F-092019-09-23. Service bulletin. WHEELS; TIRES. List of approved wheel and tire combinations for the MY14 through MY16 Porsche 911 GT3, GT3RS, and 911R models.
122-C7E6U-072019-07-08. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. Instructions for carrying out Workshop Campaign WJ90, Checking Hinge for Convertible top Compartment Lid. Due to unfavorable tolerances, there is a chance that the end position in the actuating mechanism for the convertible top compartment lid may not be reached. This could result in the convertible top being partially released.
122-X2X7N-072019-07-08. Service bulletin. ENGINE AND ENGINE COOLING. Notice to dealers that coolants will be moved out of the special tool cabinet in the dealer service department in order to make room for new special tools. All coolant tools will be moved to the "Coolant Cart" because they need to be housed in the same place.
122-V3B6B-072019-07-08. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Announcement of a 6 month warranty extension on VAS 581005P R1234yf Service Units for air conditioning.
122-W9D2T-072019-07-08. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Instructions for using VAS 581005P in order to chech and service R1234yf Air Conditioning Unit.
122-C9S9Q-122019-02-25. Service bulletin. WHEELS; SERVICE BRAKES, HYDRAULIC. Loose M6 Screws Securing PCCB Rotors to Wheel Hub
122-K6Q4Y-122019-02-25. Service bulletin. EQUIPMENT. WJ25 - Retrofitting Connect Functions (Workshop Campaign)
122-B9G2C-122019-02-25. Service bulletin. TIRES. Information Specification code of the tire, e.g. "N0", "N1", "N2" The complete "N " code of the tires in question must be shown on the tire sidewall near the tire type designation.
122-E6U4B-122019-02-25. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT. Subject: Shift lever Information: The shift lever can move in longitudinal direction during load changes in 4th gear.
122-X4X7D-092018-11-19. Service bulletin. ENGINE AND ENGINE COOLING. Cause The noises can occur if there is excessive spring force tolerance in the oil separator Date of introduction The optimized oil separators are used in production from November 25, 2015. Remedial action In the event of a customer complaint, check the part number of the installed oil separator and replace the oil separator if necessary.
122-Y9K4F-092018-11-19. Service bulletin. WHEELS. Symptom: During and after race track use, loud noises can sometimes come from the wheel assembly on the rear axle - particularly on bends. Cause: Particles of dirt on the contact surfaces can cause micro-movements in the wheel assembly on the rear axle (rim/brake disc/wheel hub) and this can result in loud noises. Remedial Action: In the event of a customer complaint, clean the wheel assembly on the rear axle as described under "Work Procedure".
122-D7K9V-092018-11-19. Service bulletin. ENGINE. Complaint - Incorrect Allocation of Fault Code (P0153/P0133) for Oxygen Sensor (upstream of Catalytic Converter): Replacing both oxygen sensors (upstreamof catalytic converter) (89/18)
122-W9X4Z-082018-08-20. Service bulletin. SUSPENSION. Customer Concern The customer states that the front axle lift function is not working. Technical Background The front strut leaks air. A tool with minor damage at the supplier was causing minor damages to struts during production.
122-Q6N7V-082018-08-20. Service bulletin. AIR BAGS. Subject: Airbag switch Symptom: The airbag warning light in the instrument cluster comes on. Cause: Corrosion at the connection point (TSX5) in the passenger footwell can cause the airbag warning light in the instrument cluster to come on.
122-S6R3L-082018-08-20. Service bulletin. ELECTRICAL SYSTEM. Cause If the Hall sensor is not positioned correctly or if it becomes slightly detached, there will be too much of a gap between the sensor and component and an error message will be displayed.
122-P5G7U-072018-08-06. Service bulletin. ELECTRICAL SYSTEM:WIRING; ENGINE. Oil in the wiring harness. If oil is found in the engine wiring harness during a repair, the wiring harness and all the affected components (including the oil pump control valve) must be replaced.
122-L8S4P-072018-08-06. Service bulletin. ENGINE. Concerns: Engine malfunction (Misfiring at high rpm) Situation: ? Diagnostic path for fault finding in the event of the complaint "Engine malfunction" ? Required repair measures
122-P5G7U-072018-07-30. Service bulletin. FUEL SYSTEM, GASOLINE. Oil in the wiring harness. If oil is found in the engine wiring harness during a repair, the wiring harness and all the affected components (including the oil pump control valve) must be replaced.
122-L8S4P-072018-07-30. Service bulletin. ENGINE AND ENGINE COOLING. Concerns: Engine malfunction (Misfiring at high rpm) Situation: ? Diagnostic path for fault finding in the event of the complaint "Engine malfunction" ? Required repairmeasures
122-B9V4V-062018-06-25. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Information: The Approval and Support Management system was created to offer assistance to the dealer organization with new and complex technical issues by utilizing the Support Specialists within Porsche R&D. As a result, this process has reduced vehicle downtime and repeat repairs substantially.
122-X8U7Y-042018-04-23. Service bulletin. VISIBILITY. Subject: Sun blind Symptom: Sun blind will not open completely and is creased. Cause: A plastic foam strip on the headliner can shrink as a result of ageing and high fluctuations in temperature and can become detached. The plastic foam strip catches in the sun blind and damages it.
122-L7V6H-032018-03-13. Service bulletin. ENGINE. Information: Subsequent performance increase to 316 kW(430 HP) Engine Type: Standard engine MA103 with engine power of 294 kW (400 hp) General: A parts kit is available for increasing the performance of the standard engine. Increased performance is achieved by implementing the following measures on the engine: ? New cylinder heads with flow-optimized intake ports, valves and valve springs. ? New intake camshafts. ? New resonance intake manifold with switching flaps (material: aluminum sand cast). ? Modified maps for the DME control unit.
122-U5W3W-092018-01-29. Service bulletin. SERVICE BRAKES. If the front brake caliper needs to be replaced, new part numbers are available. This should reduce the number of spare parts variants. Once existing inventory has been used up, order only the new parts numbers.
122-M9M8G-092018-01-29. Service bulletin. EQUIPMENT. The vacuum line can slip off the control box as a result of component tolerances of the clamp. In the event of a customer complaint, check that the vacuum line is fitted securely on the control box at the left and right. ? If the vacuum line is fitted securely on the control box, the fault is not related to the cause described here. Find the cause of the fault and correct it. Invoice for Scope 1. ? If the vacuum line has slipped off the control box, the electric change-over valve can be contaminated by drawing in dirt. Replace electric change-over valve, blow out any dirt in the vacuum line using compressed air and secure the vacuum line to the control box using a new clamp.

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