Porsche Boxster, Cayman & 718 Electric Steering Rack Repair
Porsche 981 and 718/982 RHD EPS Rack Specialists
Pro Power Steering repairs and reconditions suitable electric steering racks for Porsche 981 Boxster and Cayman models and 718/982 Boxster and Cayman variants. Correctly matched reconditioned RHD replacement racks can also be supplied for suitable applications.
Base, S, GTS, Spyder, GT4 and GT4 RS variants can use different ratios, hardware or supersessions. The complete rack label, VIN and steering options must be checked rather than relying on the model badge alone.
Request a Porsche Boxster, Cayman & 718 EPS Rack Quote
Send the registration or VIN, exact generation and model year, RHD confirmation, drivetrain and steering options, full dashboard message, complete diagnostic codes with suffixes, and clear photographs of every label and number on the original rack.
Boxster, Cayman and 718 Generations
The 981 and 982/718 families use electromechanical steering, with several shared 991-prefix rack families and performance-specific variations.
| Generation or model | Typical UK period | Steering identification | Important compatibility check |
|---|---|---|---|
| Boxster 981 | 2012–2016 | Electromechanical steering | Confirm RHD, base/S/GTS/Spyder specification and complete 991.347 number. |
| Cayman 981 | 2014–2016 | Electromechanical steering | GT4 and performance-ratio applications require exact option and label checks. |
| 718 Boxster/Cayman 982 | 2016 onward | Revised electromechanical steering | Check base, S, GTS, Spyder, GT4 or GT4 RS and current supersession. |
Compatibility warning: a model name, year or incomplete part number does not guarantee interchange. VIN, RHD/LHD, option codes, full suffix, connector layout, software and photographs of the original rack must be checked before supply.
Porsche 981 and 718/982 EPS Rack Part Numbers
These are identification and cross-reference candidates seen in Porsche technical or parts information. They are not a promise that the listed racks interchange.
981 label families
991.347.005.07/.08/.09
991.347.006.07/.08/.09
Identification families shared with related Porsche steering applications; the complete suffix and steering side matter.
981 RHD example
991.347.011.37
Listed for RHD 981 Boxster/Cayman and some 991 applications; verify derivative, ratio and supersession.
718/982 service examples
991.347.011.65 · 991.347.011.66
Seen in 718/982 and related later Porsche parts information. Do not assume both suit the same steering options.
718 GT4/Spyder RHD example
991.347.012.37
Catalogued for a UK/RHD GT4 or Spyder application; VIN and original label still govern supply.
Send the full number: spaces and dots may be removed on some labels, but every prefix and suffix still matters. The original rack label and VIN take priority.
Common Porsche Boxster, Cayman & 718 Electric Steering Rack Faults
- Loss or reduction of steering assistance
- Steering warning after low battery voltage
- Knock, rattle, creak or free play
- Uneven or notchy assistance
- End-stop or steering-angle calibration faults
- Water or connector contamination
- Internal motor or control-unit faults
- Noisy rack with no stored code
A rack can knock, creak, bind or develop free play without storing a diagnostic code. Conversely, a warning code may be caused by battery voltage, wiring, communication, software, configuration or calibration rather than physical rack failure.
Diagnosis must include mechanical checks
Porsche confirms electromechanical steering across the 718 range. Performance variants can have different steering ratios or hardware, so a clear scan report alone is not enough: ratio, label, steering side and physical condition must also be checked.
Porsche Boxster, Cayman & 718 Fault Codes and Correct Diagnosis
Always provide the complete code, suffix or fault-status number and the control unit in which it was stored. Porsche bulletins show that the same headline code can require different action according to its sub-code and vehicle.
| Code or code family | Possible meaning | Checks before condemning the rack |
|---|---|---|
| B200046 | Power-steering control-unit functional restriction. Porsche bulletins use different status suffixes such as 000700, 000800 and 000900. | Record the complete status. On specified 992 and Taycan cases, 000700 can call for adaptation reset and re-coding, while 000800 or 000900 can require steering-gear replacement. |
| C10ACF0 | Power-steering limit stops not taught. | Carry out the specified steering-lock or end-stop learning procedure before treating the rack as failed. |
| U-code / no communication | Loss of communication with the power-steering control unit or implausible network data. | Check battery support, power, earth, connectors, CAN communication and related control-unit faults. |
| No stored code | Mechanical play, bearing noise, binding, water ingress or impact damage can exist without an electronic DTC. | Complete physical inspection, road-test assessment and checks of joints, mounts and surrounding suspension. |
How Porsche Boxster, Cayman & 718 Rack Repair, Reconditioning and Supply Works
Identify
VIN, generation, RHD specification, steering options and original rack label are checked.
Diagnose
Codes, voltage, communication, software, calibration and mechanical condition are assessed.
Repair or Supply
We agree original-unit repair or quote a correctly matched reconditioned replacement rack.
Fit and Set Up
Fitting or delivery is arranged with PIWIS-related coding, end-stop learning and alignment considered.
Information Needed for an Accurate Porsche Boxster, Cayman & 718 EPS Quote
Vehicle details
- Registration or full VIN
- Exact generation, model, derivative and year
- RHD confirmation and drivetrain
- Power Steering Plus, rear-axle steering and relevant option codes
Rack and diagnostic details
- Clear photographs of every label and number
- Exact dashboard warning
- Complete fault codes and status suffixes
- Description or video of noise, play or intermittent assistance
Porsche Boxster, Cayman & 718 Electric Steering Rack FAQs
Do you cover Boxster, Cayman and 718 variants?
Yes, applicable 981 and 982/718 base, S, GTS, Spyder and GT4-family racks can be assessed subject to correct identification.
Can you repair my original rack?
Often, yes. Electronics, motor, housing, corrosion and mechanical condition are assessed before work is confirmed.
Can I buy a reconditioned RHD replacement?
Yes, subject to correct part matching and stock. Workshop fitting or UK delivery can be discussed.
Is a 981 rack automatically interchangeable with a 718 rack?
No. Shared prefixes do not prove interchange; suffix, ratio, model, steering side and software must be checked.
Will setup be needed after fitting?
End-stop learning, steering-angle calibration, programming or configuration and wheel alignment may be required.
Related Porsche Steering Services
Discuss Your Porsche Boxster, Cayman & 718 RHD EPS Rack
Send the VIN, complete rack numbers, fault codes and clear photographs so we can identify the correct repair or replacement option.
