Porsche 911 Recall R/1994/013: Rear Wheel Lock Up Under Braking, Who Is Affected And What To Do
- Urgent
- How serious
- 5 Apr 1994
- Launched
- 258
- vehicles in the UK
- R/1994/013
- DVSA reference
Porsche recalled 911 vehicles built between 1 January 1991 and 31 December 1992. Under extreme circumstances rear wheel lock up could occur during heavy braking. The dealer will replace the original brake modulator valve with a modified example. You won't usually pay for it.1
What’s Wrong
Under extreme circumstances rear wheel lock up could occur during heavy braking. This is due to the fitment of an incorrect brake modulator valve.
DVSA's Original Wording
Concern: REAR WHEEL LOCK UP UNDER BRAKING Defect: Under extreme circumstances rear wheel lock up could occur during heavy braking. This is due to the fitment of an incorrect brake modulator valve. Remedy: Recall the affected vehicles and replace the original brake modulator valve with a modified example.
Contains public sector information licensed under the Open Government Licence v3.0.
The Risk
The recall notice describes the concern as: rear wheel lock up under braking.
The Fix
The dealer will replace the original brake modulator valve with a modified example.
Are You Affected?
911 built between 1 January 1991 and 31 December 1992 may be included. Porsche estimates 258 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.
Which Car Is It?
Choose the make and model so we can match recalls to your car.
What To Do Now
- Check your car by registration above, then by VIN with Porsche.
- Book with any franchised Porsche dealer, quoting the DVSA reference R/1994/013. See how to get a Porsche recall fixed.
- Follow the letter's instructions until the repair is done. See can you drive a car with a recall?.
Related Recalls
| Launched | Vehicle and fault | Severity | Reference |
|---|---|---|---|
| 911Check rear seat belt buckles and rework if necessary | Urgent | R/2025/077 | |
| 911, GT4 RS, Panamera, Spyder RSStop Use & Safety Recall: Wheel attachment with central locking | Book soon | R/2024/427 | |
| 911Check front and rear windows and replace if necessary | Low | R/2024/140 | |
| 911On affected vehicles the side airbag installed in bucket seats may be activated unnecessarily | Urgent | R/2023/319 | |
| 911The screw connection of the pressure input rod of the brake booster was not carried out according to regulations | Urgent | R/2021/317 |
This is one of 122 Porsche recalls in DVSA’s data. The Porsche recall launched before it was R/1994/012 on 16 Feb 1994, for rear heater blower resistor may overload. The one launched after it was R/1994/045 on 4 Aug 1994, for possible cracking of rear axle side parts. You can also see every Porsche recall, all recalls launched in 1994 and brake recalls across every make.
Source: DVSA recall R/1994/013, launched 5 April 1994. Data updated 15 October 2026. How we grade urgency.
Sources
- 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.