Airbag control unit with part number 5C0959655P

What does the airbag control unit 5C0959655P do?

The airbag control unit 5C0959655P forms the central control unit of the SRS for Volkswagen. It evaluates the crash sensors, decides in a crash within milliseconds on the triggering of airbags and seatbelt pretensioners, and monitors the system continuously.

The control unit shows faults via the airbag warning light in the instrument cluster.

After an accident, it stores crash data and locks itself.

Why does the control unit 5C0959655P fail?

The most common cause with the 5C0959655P is stored crash data, and this applies even without a triggered airbag. A standard diagnostic tool cannot erase it. Aging of the electronics, moisture, corrosion and voltage spikes are added to this.

Besides the crash data, the following causes may apply:

• aged electronic components
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes, for example from a weak battery or a jump start

Which of these applies in an individual case can only be narrowed down with the fault memory.

How can you tell that the 5C0959655P is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently if there is a defect in the 5C0959655P. Typical signs also include an error message, a missing connection to the diagnostic tool and a fault memory that cannot be cleared.

The signs in detail:

• Airbag warning light permanently or intermittently on
• Error message in the instrument cluster
• Diagnostic tool receives no connection to the control unit
• Fault memory cannot be cleared

In an emergency, airbags and seatbelt pretensioners may not trigger. Therefore, have the system checked promptly.

Which vehicles is the 5C0959655P fitted in?

The control unit 5C0959655P is fitted in these vehicles: Volkswagen Jetta 6 (2010-2018); Volkswagen Beetle Facelift (5C) (2016-2019) and A5 (5C) (2011-2016). You can clarify whether your car is among them by make and model.

Here is the list of vehicles:

• Volkswagen Jetta 6 (2010-2018)
• Volkswagen Beetle Facelift (5C) (2016-2019)
• Volkswagen Beetle A5 (5C) (2011-2016)

Compare the part number on the label of the removed unit with this page. This only confirms that it is the right unit. Whether the control unit is defective or a plug or cable is the cause is shown only by the fault memory. Therefore have it read out before removal.

For the same vehicles, we also repair control units with the part numbers 5C0 959 655C, 5C0959655AB0MT, 5C0959655E, 5C0959655F, 5N0 959 655 AC 702.

How does the repair of the 5C0959655P work?

With the 5C0959655P, first have the fault memory read out and enclose the log. Then disconnect the battery, remove the control unit, and create a repair order online. Send the well-packed unit in.

Airbag24 checks the unit on the test bench, replaces defective components, erases stored crash data and runs a function test. Afterwards, your unit comes back to you.

Processing at Airbag24 usually takes 3–4 working days. This time applies only to checking, repairing and testing.

Our repairs come with 2 years' statutory liability for defects.

The repaired control unit comes back with all vehicle data and is ready for use as soon as it is refitted — no coding or programming is required.

How does the control unit 5C0959655P get to Airbag24?

You send the 5C0959655P as a parcel or have it collected by UPS for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

The printed repair order goes into the parcel, and the unit is packed shockproof.