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Porsche · Convertible · 2011–2019

Porsche 911 991 Cabrio

Weaknesses, engine ratings and buying advice

★★★★★
3.4 / 5.0 · Based on 10 engine variants
Most Fun Engine

500–530 PS

3.8L Turbo Benzin

Last Manual Turbo

Legendary!
Most Reliable Engine

400 PS

3.8L Benzin

5 weaknesses

Good Choice

Engine Overview

The Porsche 911 991 Cabrio is available with 8 engine variants — from 345 to 581 hp.

Carrera · Benziner· 349–370 PS Engine Change
2011 2016
Good Choice 5 weaknesses
2015 2019
Be Careful 7 weaknesses
Carrera 4 · Benziner· 349–370 PS Engine Change
2012 2016
Good Choice 5 weaknesses
2015 2019
Be Careful 7 weaknesses
Carrera 4 GTS · Benziner· 430–450 PS Engine Change
2014 2016
Be Careful 6 weaknesses
2017 2019
Be Careful 7 weaknesses
Carrera 4S · Benziner· 400–420 PS Engine Change
2012 2016
Good Choice 5 weaknesses
2015 2019
Be Careful 7 weaknesses
Carrera GTS · Benziner· 430–450 PS Engine Change
2014 2016
Be Careful 6 weaknesses
2017 2019
Be Careful 7 weaknesses
Carrera S · Benziner· 400–420 PS Engine Change
2011 2016
Good Choice 5 weaknesses
2015 2019
Be Careful 7 weaknesses
Turbo · Benziner· 521–540 PS Engine Change
2013 2016
Be Careful 8 weaknesses
Show all weaknesses →
2015 2019
Be Careful 10 weaknesses
Show all weaknesses →
Turbo S · Benziner· 560–581 PS Engine Change
2013 2016
Be Careful 8 weaknesses
Show all weaknesses →
2015 2019
Be Careful 10 weaknesses
Show all weaknesses →

Vehicle Weaknesses

WeaknessCost
!Soft-Top Fabric Chafes — Porsche Refuses Warranty

The soft-top fabric shows pronounced chafe marks at the fold lines after 3–4 years. Porsche Germany classifies this as normal appearance. New roof approximately €4,100 plus €1,000 fitting.

Symptoms: Clearly visible chafe marks and colour changes on the soft-top fabric, especially at fold lines. Headliner can come loose.
from 50,000 km
Ad convertible top 991 Cabrio completeconvertible topstoff 991 Sonnenland
 High
●Cabriolet Roof Headliner Creasing

The interior headliner of the cabriolet roof develops creases and partially detaches. A cosmetic issue with no functional impact.

Symptoms: Visible creases in the roof headliner, fabric coming loose in places
from 60,000 km
Ad convertible tophimmel 991 CabrioInnenhimmel convertible top 991
 High
●Water Ingress Through Aged Seals

Door and window seals harden over time. Water enters the interior in heavy rain.

Symptoms: Wet footwell after heavy rain, fogged windows
from 80,000 km
Ad doorgasket 991Fenstergasket 991
 Low
●Targa Sliding Roof Seal Detaches Repeatedly — Front Right

The front right seal detaches over approximately 20 cm. Re-gluing does not hold permanently. Repair requires a complete sliding roof replacement with repainting.

Symptoms: Visibly protruding rubber seal front right on the Targa roof. Slight water ingress after rain. Wind noise at motorway speed.
from 30,000 km
Ad sunroof gasket 991 TargaTarga Dachgasket 991
 Medium
●Targa Roof Leaks Water in High-Pressure Car Wash

High-pressure car washes force water in at the A-pillar/roof joint. Sealed in normal driving and rain. Regular seal conditioning helps.

Symptoms: Water droplets on the inside of the windscreen after a car wash. Only at high water pressure, not in normal rain.
Ad Targa gasket A-Säule 991gasketspflege Targa 991
 Low

Frequently Asked Questions

What problems and weaknesses does the Porsche 911 991 Cabrio have? +
The Porsche 911 991 as Cabrio has 81 known weaknesses, 11 vehicle-related.
Which engine is recommended? +
Good Choice: MA1.04 (3.4L), MA1.03 (3.8L).
Is the Porsche 911 991 Cabrio worth buying used? +
The Porsche 911 991 Cabrio is a good choice as a used car — 2 of 10 engine variants are rated 'Good Choice'.

Last updated: February 2026 · All information without guarantee

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