Porsche 911 Recall R/2021/317: The Screw Connection Of The Pressure Input Rod Of The Brake Booster Was Not Carried Out…, Who Is Affected And What To Do

DVSA reference R/2021/317, campaign code AMB9. Data updated daily from DVSA.

Urgent
How serious
22 Sep 2021
Launched
4
vehicles in the UK
AMB9
Manufacturer’s campaign code

Porsche recalled 911 vehicles built between 7 November 2018 and 29 April 2021. The screw connection of the pressure input rod of the brake booster may not have been tightened according to regulations. The dealer will replace the brake booster or reworked depending on the vehicle type. You won't usually pay for it.1

What’s Wrong

The screw connection of the pressure input rod of the brake booster may not have been tightened according to regulations.

DVSA's Original Wording

Concern: THE SCREW CONNECTION OF THE PRESSURE INPUT ROD OF THE BRAKE BOOSTER WAS NOT CARRIED OUT ACCORDING TO REGULATIONS Defect: The screw connection of the pressure input rod of the brake booster may not have been tightened according to regulations. Remedy: The brake booster must be replaced or reworked depending on the vehicle type.�

Contains public sector information licensed under the Open Government Licence v3.0.

The Risk

The recall notice describes the concern as: the screw connection of the pressure input rod of the brake booster was not carried out according to regulations.

The Fix

The dealer will replace the brake booster or reworked depending on the vehicle type.

Are You Affected?

911 built between 7 November 2018 and 29 April 2021 may be included. Porsche estimates 4 vehicles in the UK. Enter your registration to check, then confirm by VIN with Porsche, because not every car in the date range may be included.

What To Do Now

  1. Check your car by registration above, then by VIN with Porsche.
  2. Book with any franchised Porsche dealer, quoting the campaign code AMB9 or the DVSA reference R/2021/317. See how to get a Porsche recall fixed.
  3. Follow the letter's instructions until the repair is done. See can you drive a car with a recall?.
LaunchedVehicle and faultSeverityReference
911Check rear seat belt buckles and rework if necessaryUrgentR/2025/077
911, GT4 RS, Panamera, Spyder RSStop Use & Safety Recall: Wheel attachment with central lockingBook soonR/2024/427
911Check front and rear windows and replace if necessaryLowR/2024/140
911On affected vehicles the side airbag installed in bucket seats may be activated unnecessarilyUrgentR/2023/319
911There is a possibility that the hazard warning lights will not be activated after pressing the centre console buttonLowR/2020/108

This is one of 122 Porsche recalls in DVSA’s data. The Porsche recall launched before it was R/2021/314 on 15 Sep 2021, for rear axle carrier side parts may not meet required specifications. The one launched after it was R/2021/410 on 6 Dec 2021, for there is a possibility that the screw connection on upper control arms of the rear axle…. You can also see every Porsche recall, all recalls launched in 2021 and brake recalls across every make.


Source: DVSA recall R/2021/317, launched 22 September 2021. Data updated 15 October 2026. How we grade urgency.

Sources

  1. The Code does not itself say repairs are free. GOV.UK guidance says "You will not usually have to pay for any repairs or parts under a safety recall." gov.uk Checked 15 Oct 2026.