Fault File
All models / All cars / Saloons & estates / Porsche Taycan

Porsche Taycan

All generations and engines together · 7,952 MOT tests in the 2025 data

How this model wears

Porsche TaycanClass average, all tracked models

Known issues

Measured

Computed from DVSA MOT results, all of Great Britain, 2025. Nothing here is opinion.

What testers flag

Share of tests where each item was recorded. The dark tick is the class average across all tracked models; bars are scaled within each group.

Faults with the car itself

The rows that judge the model rather than its keeper. 7,952 tests in this band.

A wheel badly distorted or wear between wheel and hub at spigot mounting
Advisory
0.4%class 0.4%
A suspension pin, bush or joint excessively worn
Fail
0.2%class 0.7%
A suspension pin, bush or joint excessively worn
Advisory
0.2%class 0.4%
An obligatory rear fog lamp missing, or a front or rear fog lamp inoperative or in the case of a multiple light source m
Fail
0.2%class 0.1%
An SRS malfunction indicator lamp (MIL) indicates a system malfunction
Fail
0.2%class 0.1%

Wear, upkeep and luck

Tyres, pads and stone chips say more about how the car was driven and maintained than about how it was built.

Tyre tread depth not in accordance with the requirements
Advisory
28.7%class 18.8%
A tyre seriously damaged
Advisory
6.5%class 13.1%
A tyre seriously damaged
Fail
4.1%class 2.3%
A tyre cords visible or damaged
Fail
3.6%class 1.3%
Nail in tyre
Advisory
2.2%class 1.7%
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
Minor
2.0%class 1.4%
Tyre tread depth not in accordance with the requirements
Fail
1.7%class 2.3%
Child Seat fitted not allowing full inspection of adult belt
Advisory
1.5%class 2.1%

Unconfirmed issues

Reported

Owner folklore from forums and the motoring press. Most of it never shows up in an MOT, which is why this section exists at all.

High-voltage battery module fire risk (LG cell defect)

Confirmed pattern

Porsche recalled cars built roughly from late 2019 through early 2024 over LG-supplied battery cell modules that can develop an internal short circuit with no warning light before a thermal event. Around 27,000 cars worldwide are covered by the recall opened in October 2024, and Porsche replaces the affected cell block module free of charge. Any pre-owned Taycan in this build window should show the recall as completed on its service history.

Recall opened Oct 2024, roughly 27,720 cars worldwide · sources: NHTSA recall filing, Porsche recall notice coverage

Seat wiring that can disable airbags and seatbelt pretensioners

Partly in the MOT data

Porsche recalled over 40,000 Taycans (and the related Audi e-tron GT) because the wiring harness under the front seats can be damaged when the seat is slid back and forth, in the worst case knocking out the airbag and seatbelt pretensioner circuits. No injuries have been linked to it and the fix is a free dealer inspection and repair where needed. It lines up neatly with the model's measured MOT weak spot, seatbelts and airbags, and gives an actual manufacturer-acknowledged reason a fault in that area could exist on a car that hasn't had the recall done.

Recall from 2026, 40,000+ cars worldwide · sources: manufacturer recall coverage, NHTSA/press recall notices

12V battery goes flat after a few days standing

Emerging

A recurring owner complaint: the small 12V battery that runs the low-voltage electronics drains flat after anywhere from 4 to 14 days of the car sitting unused, occasionally even while plugged in at home. Owners point to a software loop that keeps control modules awake overnight; Porsche has pushed several software updates but the complaints keep resurfacing across model years. A replacement 12V battery runs roughly £150-250 fitted, though the drain itself often comes back after a new one goes in.

Reported across model years 2020 onward · sources: Taycan Forum, Porsche Club GB forum, Reddit r/Taycan

Front brake discs rust and pit quickly

Disputed

Because regenerative braking does most of the slowing, the friction brakes see far less use than on a combustion Porsche, and owners report the iron front discs picking up surface rust, pitting and judder within a couple of years even at modest mileage. Some owners and independent garages call this normal for a car that barely uses its friction brakes, others have had discs replaced under dealer goodwill or paid out of pocket, roughly £400-800 a pair. There's no TSB or recall, it's an ongoing argument among owners over whether it's a design issue or just how an EV's brakes age.

Reported from low mileage, within 2-3 years · sources: Taycan Forum, general owner reports on EV brake corrosion

Central screen (PCM) freezes or reboots on the move

Emerging

A repeated complaint is the central PCM touchscreen freezing solid, sticking on the Porsche startup logo, or spontaneously rebooting while driving, sometimes losing sat-nav, climate and drive-mode control for anywhere from a few seconds to over an hour. It has shown up on cars fresh from delivery through to ones with 20,000-plus miles, across different software versions. Porsche's usual fix is a software update or a PCM reset at a dealer, free under warranty, but owners report it recurring after the fix.

Reported from new to 20k+ miles · sources: Taycan Forum, Rennlist Porsche forum

Viewing one? Ask this

Built from the two sections above.

Check the service history for the HV battery module recall and the seat-wiring harness recall. If either shows as outstanding, budget for a dealer visit before you rely on the airbags or seatbelts.
Ask when the seatbelt/airbag wiring recall was carried out and get it confirmed in writing. No record means the safety fix may still be outstanding on this exact car.
Check the MOT history for any airbag or seatbelt warning-light advisories. Repeated entries here match the model's measured weak spot and are worth chasing before you buy.
If the car has been sitting unused for several days before viewing, check it starts cleanly with no warning lights. A flat 12V battery or startup fault points to the known parasitic-drain issue.
Brake hard from 40-50mph on a quiet road and feel for vibration through the pedal. Judder usually means corroded or pitted front discs, common on cars that barely use their friction brakes.
Look closely at the front discs through the wheel spokes for rust ridges, pitting or scoring. Heavy corrosion means a judder complaint is likely and discs may need replacing soon.
Prod through every menu on the central screen and leave it running for ten minutes. Any freeze, reboot, or drop back to the Porsche startup logo is the known PCM software fault.

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