Porsche 718 Cayman 982

The 2.0T four-cylinder boxer was a provocation in 2016 — Porsche replaced the legendary naturally aspirated six-cylinder with a turbocharged four, and reactions ranged from disappointment to open anger. Technically the engine is solid: broad torque band, pushing strongly from just 1,600 rpm, not a bad engine. But the sound is a problem — the characteristic boxer snarl of the old 2.7/3.4 is completely absent; instead the 2.0T sounds like a well-motorised VAG product. Cooling system weaknesses (variable water pump with vacuum seal) and carbon build-up on the intake valves need monitoring at higher mileages. Get past the sound and you have a dynamically excellent mid-engine sports car.

• !! Water pump vacuum seal failed from 25,000 km

  The variable water pump uses vacuum to control flow. The vacuum seal fails prematurely, coolant enters the vacuum lines. A common problem.

  Symptoms: Warning message "Visit workshop — cooling system", coolant loss at pump housing, coolant in vacuum lines
  800–1,800 $
  Ad water pump MDD 718 Boxstercoolant pump 982 2.0T
• !! Turbo actuator blocked by dirt from 40,000 km

  The electronic turbo actuator sits near an underbody opening and is susceptible to water and dirt ingress. Actuator seizes, boost collapses.

  Symptoms: Significantly reduced boost, barely any power at full throttle, no boost in Sport mode
  200–4,500 $
  Ad turbo actuator 718 2.0T MDDLadedruckregler 982 Boxster
• !! Coolant expansion tank cracks from 40,000 km

  Coolant expansion tank develops hairline cracks and loses coolant at operating temperature. Leak often only shows when hot — no puddle when cold. Replacement requires extensive disassembly.

  Symptoms: Coolant warning light, coolant smell after driving, occasional puddle on the passenger side rear.
  800–2,200 $
  Ad coolantausgleichsbehälter 718coolantbehälter 982 Boxster Cayman

+ 3 more engine weaknesses + vehicle weaknesses

This is the redemption. Porsche answered the purists' outcry and brought back the 4.0L naturally aspirated flat-six in 2019/2020 — an engine that revs to 7,800 rpm, has individual throttle bodies and produces a sound that's unmistakably Porsche. The pull comes without turbo feel: linear, increasingly urgent, and the final third before the limiter is an experience you don't forget. High-revving also means: valve stem seals age faster, and the early series (August 2020 to January 2021) had a documented oil pump defect with engine damage risk — that's the first question when buying used. PADM engine mounts fail frequently but remain drivable. The 4.0 naturally aspirated is the engine the 718 concept was always waiting for.

• !! Oil pump failure on Aug 2020–Jan 2021 production from 500 km

  Vehicles produced August 2020–January 2021 had defective oil pumps. The pump seizes, the simplex chain snaps and damages the timing chain. Engine damage from under 1,000 km. Warranty replacement.

  Symptoms: "Oil pressure measurement error" warning, engine dies at low rpm, no restart possible
  0–0 $
  Ad oil pump 4.0 GT4 DKDAoil pumpnkette 718 Spyder
• !! Water pump early failure from 50,000 km

  The 4.0L naturally aspirated engine also shows premature water pump failures. Coolant loss requires removing the intake manifold — not a full engine removal as with the turbo 4. Still several hours of work.

  Symptoms: Coolant warning light, coolant loss, puddle rear driver's side, cooling fault code.
  1,000–2,500 $
  Ad water pump 718 4.0 GT4coolant pump DKDA Spyder GTS 4.0
• !! Coolant expansion tank cracks from 35,000 km

  The expansion tank in the 4.0L cracks under thermal cycling. On the GT4/Spyder the intake manifold must be removed — no full engine removal needed. Early failures documented from as low as 8,000 km.

  Symptoms: Coolant warning light at low mileage, coolant smell, puddle rear driver's side.
  800–1,800 $
  Ad coolantausgleichsbehälter 718 GT4coolantbehälter 982 4.0 DKDA

+ 5 more engine weaknesses + vehicle weaknesses

4.0 litres, naturally aspirated flat-six architecture, 9,000 rpm. The MDG.GA is the final evolution of the high-revving NA line: revised combustion chamber geometry, improved valve timing over the MA1.75, and oil supply made more robust through increased oil pressure. The dry sump system demands consistent oil monitoring — consumption of 0.5–1.5 litres per 1,000 km on track is normal and not a defect sign. Check oil level regularly under intensive track use. The early 718 engine variants had a 2021 recall for defective con-rods. The lash cap issue from the 991.1 generation can also occur in the MDG.GA — Porsche built RS engines with oil pumps without protective screens. Oil changes every 15,000 km or annually, fully synthetic, and regular borescoping when buying used. Oil level note: measurement tolerance is extremely tight — even 200-300 ml over max triggers the overfill warning. Short trips, parking on a slope, or a workshop overfill of 0.3 l is enough. Top up only in 20 ml increments (Rennlist consensus).

• !! Recall: defective connecting rods (718, 2021 batch)

  A supplier delivered defective connecting rods that do not meet quality specifications. Fracture is possible, leading to engine damage and elevated fire risk. 190 vehicles affected.

  Symptoms: Sudden engine failure, engine oil ejection, elevated fire risk — often without warning
  0–0 $
  Ad connecting rod 718 GT4 RS 4.0Connecting Rod 718 Spyder 4.0
• !! Lash cap detaches — oil pump blocks from 15,000 km

  Valve lash caps on RS variants can detach due to harmonic valvetrain vibrations, drop into the sump and immediately block the unprotected oil pump. Engine failure is unavoidable.

  Symptoms: Sudden oil pressure drop at 3,750–20,000 km, oil pressure warning light, engine shutdown
  50,000–80,000 $
  Ad oil pump MDG.GA 4.0 GT3 RSLash Cap GT4 RS 4.0
• !! Elevated oil consumption during track use

  The 4.0L naturally aspirated engine consumes 0.5–1.5 litres per 1,000 km during intensive track use. Not checking oil before and after track sessions leads to oil starvation and consequential damage.

  Symptoms: Dropping oil level without visible leak, occasional oil pressure warning at high-rpm operation
  200–8,000 $
  Ad Ölstand 718 GT4 RS 4.0Porsche engine oil 0W-40 MDG.GA

+ 2 more engine weaknesses + vehicle weaknesses

The 2.5T in the first GTS configuration at 269 kW is the best that can be extracted from the four-cylinder turbo — more aggressively calibrated, Sport Chrono standard, more direct throttle response. The difference from the S variant is noticeable but no quantum leap. Oil consumption on this engine is structurally higher than the 2.0T — Porsche accepts up to 0.8 l/1,000 km as normal; under spirited driving 1 l/1,000 km is realistic. Sonically the GTS four-cylinder still doesn't come close to what purists expect. The redemption came in 2020 with the GTS 4.0 — until then the 2.5T GTS was the best available compromise in the 718 without the naturally aspirated flat-six.

• !! High-pressure fuel pump failure from 90,000 km

  High-pressure fuel pump prone to pressure loss through internal wear damage. Insufficient fuel supply triggers limp mode.

  Symptoms: Engine misfires, power loss, limp mode, check engine light, difficult cold start.
  1,500–4,000 $
  Ad high-pressure fuel pump Macan Diesel 2.0 TDIHPFP Macan 95B Diesel
• !! Wastegate actuator seizes from 55,000 km

  The 2.5T in the GTS is prone to seized wastegate actuators — thermally stressed harder than in the S due to the higher boost strategy. Diagnosis and repair at a Porsche dealer required.

  Symptoms: Rattling on load change around 2,500–3,000 rpm, limp mode, fluctuating boost pressure.
  1,000–5,000 $
  Ad wastegate actuator 718 GTS 2.5Tturbocharger Stellantrieb Porsche 982 GTS
• !! Spark plugs seize in aluminium heads from 30,000 km

  Spark plugs can seize in the aluminium heads of the 2.5T GTS engine when service intervals are missed (3 years/30,000 km). Turbo-related temperature spikes accelerate the baking-in. Thread damage can require cylinder head repair.

  Symptoms: Misfires, rough running, fault codes for specific cylinders, difficulty removing plugs.
  350–2,800 $
  Ad spark plug 718 GTS 2.5Tspark plug Porsche MA2.22

+ 3 more engine weaknesses + vehicle weaknesses

This is the redemption. Porsche answered the purists' outcry and brought back the 4.0L naturally aspirated flat-six in 2019/2020 — an engine that revs to 7,800 rpm, has individual throttle bodies and produces a sound that's unmistakably Porsche. The pull comes without turbo feel: linear, increasingly urgent, and the final third before the limiter is an experience you don't forget. High-revving also means: valve stem seals age faster, and the early series (August 2020 to January 2021) had a documented oil pump defect with engine damage risk — that's the first question when buying used. PADM engine mounts fail frequently but remain drivable. The 4.0 naturally aspirated is the engine the 718 concept was always waiting for.

• !! Oil pump failure on Aug 2020–Jan 2021 production from 500 km

  Vehicles produced August 2020–January 2021 had defective oil pumps. The pump seizes, the simplex chain snaps and damages the timing chain. Engine damage from under 1,000 km. Warranty replacement.

  Symptoms: "Oil pressure measurement error" warning, engine dies at low rpm, no restart possible
  0–0 $
  Ad oil pump 4.0 GT4 DKDAoil pumpnkette 718 Spyder
• !! Water pump early failure from 50,000 km

  The 4.0L naturally aspirated engine also shows premature water pump failures. Coolant loss requires removing the intake manifold — not a full engine removal as with the turbo 4. Still several hours of work.

  Symptoms: Coolant warning light, coolant loss, puddle rear driver's side, cooling fault code.
  1,000–2,500 $
  Ad water pump 718 4.0 GT4coolant pump DKDA Spyder GTS 4.0
• !! Coolant expansion tank cracks from 35,000 km

  The expansion tank in the 4.0L cracks under thermal cycling. On the GT4/Spyder the intake manifold must be removed — no full engine removal needed. Early failures documented from as low as 8,000 km.

  Symptoms: Coolant warning light at low mileage, coolant smell, puddle rear driver's side.
  800–1,800 $
  Ad coolantausgleichsbehälter 718 GT4coolantbehälter 982 4.0 DKDA

+ 5 more engine weaknesses + vehicle weaknesses

The 2.5T four-cylinder boxer in the S variants is a step up from the 2.0T — more displacement means less turbo pressure needed, the pull is fuller, and the spread between part-load and full-load feels less artificial. Still: sonically the engine remains a compromise. The 2.5T cooling system has its own weakness in the form of changeover valves that can fail prematurely without obvious coolant loss — diagnosis is tedious. Turbo oil feed lines can leak and set up bearing damage. Buying the S means primarily buying the better suspension calibration and higher torque — the engine is a means to an end, not a soul.

• !! Wastegate actuator seizes / turbo failure from 50,000 km

  Wastegate actuator can seize or fail. Porsche dealers diagnosed seized actuators that were fixed by lubrication — sometimes replacement was necessary. Can trigger limp mode.

  Symptoms: Metallic rattle at around 2,700 rpm, power loss, limp mode, boost pressure fault.
  800–4,500 $
  Ad wastegate actuator 718 2.5Tturbocharger actuator motor Cayman S 982
• !! Spark plugs seize in aluminium heads from 30,000 km

  Overdue spark plugs can seize in the aluminium heads of the 2.5T engine. Turbo-related heat cycles accelerate the baking-in. Thread damage can require cylinder head repair.

  Symptoms: Misfires, rough running, fault codes for individual cylinders, difficulty removing plugs.
  350–2,800 $
  Ad spark plug 718 2.5T Cayman Sspark plug Porsche 982 S
• !! Cooling system switching valves failed from 40,000 km

  Thermal switching valves in the cooling circuit fail prematurely. Similar vacuum issues as on the 2.0T. A symptomatic diagnostic drive is required.

  Symptoms: Cooling system fault warning, irregular temperature development, workshop alert without visible coolant loss
  600–2,000 $
  Ad cooling systemventil 718 GTS 2.5Tthermostatventil 982 Boxster S

+ 3 more engine weaknesses + vehicle weaknesses

Identical engine architecture to the MDD.PB, fitted in the T derivatives with marginally adjusted calibration. The T variant has something to offer as a concept — lighter spec, Sport Chrono and PASM standard — but the four-cylinder turbo itself remains what it is: powerful and efficient, sonically unconvincing. The same VAG EA888-related issues (timing chain tensioner, oil consumption, timing chain cover gasket) apply at high mileages. Not a bad engine, but anyone wanting a mid-engine sports car with the right soundtrack is better off waiting for the 4.0 naturally aspirated.

• !! Spark plugs seize in aluminium heads from 35,000 km

  Spark plugs can seize in the aluminium cylinder heads if the 3-year/30,000 km replacement interval is exceeded. Removal can damage the head — routine maintenance turns into a costly repair.

  Symptoms: Misfires, rough idle, difficult plug removal, in the worst case stripped threads.
  300–2,500 $
  Ad spark plug 718 2.0TGewindeei kit cylinder head 718
• !! Water pump vacuum seal failed from 25,000 km

  Identical to the MDD.PB: the variable water pump uses vacuum for flow control. The vacuum seal fails prematurely.

  Symptoms: Cooling system warning, coolant loss at the pump housing
  800–1,800 $
  Ad water pump 718 T DDPBcoolant pump 982 T
• !! Timing chain tensioner wears out (EA888) from 120,000 km

  EA888 Gen3B 2.0 TFSI Macan: the timing chain tensioner can lose tension at high mileage. Typical EA888 issue.

  Symptoms: Timing chain rattle on cold start, camshaft position fault code
  800–2,000 $
  Ad timing chain Macan 2.0 TFSIchain tensioner EA888 DDPB

+ 3 more engine weaknesses + vehicle weaknesses