The 2011 Cayenne S with the 4.8L V8 (M48.02 engine) is a capable luxury SUV plagued by catastrophic engine failures due to cylinder scoring and coolant pipe leaks. When maintained meticulously and caught early, they're excellent performers—but the engine grenading risk makes this a high-stakes used purchase.
Cylinder Bore Scoring and Piston/Ring Failure
Common · high severity
Typical onset: 60,000-120,000 mi
Symptoms: Excessive oil consumption (more than 1 qt per 1,000 mi), White/blue smoke on cold starts, Loss of compression leading to misfires and rough running, Metallic rattling from engine bay
Fix: This is the platform's Achilles heel. Cylinders 1-4 score due to localized overheating from inadequate oiling or coolant issues. Requires complete engine rebuild with bore sleeve installation or factory short-block replacement. Labor runs 35-45 hours for full rebuild, 25-30 for short-block swap.
Estimated cost: $15,000-25,000
Coolant Crossover Pipe Failure
Common · high severity
Typical onset: 70,000-110,000 mi
Symptoms: Coolant loss with no visible external leaks, Overheating under load or at idle, Steam from engine bay, Coolant smell in cabin
Fix: Plastic coolant pipes running under the intake manifold crack and leak internally. This often CAUSES the cylinder scoring if undetected. Requires intake manifold removal to access. 8-12 hours labor. Replace ALL coolant pipes preventively while in there—not just the failed one.
Estimated cost: $2,500-4,000
Transmission Oil Cooler Line Leaks
Occasional · medium severity
Typical onset: 80,000-130,000 mi
Symptoms: Transmission fluid spots under vehicle, Burnt transmission fluid smell, Harsh shifts or slipping when fluid gets low, Fluid visible around cooler lines at radiator
Fix: The hard lines running to the transmission cooler corrode and develop pinhole leaks or crack at fittings. Replace lines and flush transmission fluid. 4-6 hours labor including fluid service.
Estimated cost: $1,200-1,800
Transfer Case and Transmission Mounts
Common · medium severity
Typical onset: 60,000-100,000 mi
Symptoms: Clunking when shifting from Park to Drive, Vibration at highway speeds (55-65 mph), Excessive drivetrain movement visible when rocking vehicle, Cabin resonance at specific RPM ranges
Fix: Rubber mounts fail from heat and age. Transmission mount is the primary culprit, but transfer case mount often follows. Replace as a set with OE-quality parts. 3-4 hours labor.
Estimated cost: $800-1,400
Air Suspension Compressor and Line Failures
Occasional · medium severity
Typical onset: 90,000-140,000 mi
Symptoms: Vehicle sagging at one corner overnight, Compressor running constantly, Suspension warning light with 'Airmatic Fault' message, Hissing sound from wheel wells
Fix: Air struts develop leaks at seals, or supply lines crack. Compressor wears out from overwork. Strut replacement is 2-3 hours per corner; compressor is 3-4 hours. Many owners convert to coil springs ($2,500-3,500 for all four corners) to eliminate future air suspension headaches.
Estimated cost: $1,500-2,800
Fuel Filter Clogging and Low-Pressure Pump Failure
Occasional · medium severity
Typical onset: 80,000-120,000 mi
Symptoms: Hard starting especially when hot, Hesitation or stumble under acceleration, Intermittent stalling, Check engine light with fuel trim codes
Fix: In-tank low-pressure pump (pre-pump) fails or filter clogs. Requires fuel tank drop. Replace pump, filter, and associated seals/lines as assembly. 6-8 hours labor. Often overlooked until it causes drivability issues.
Estimated cost: $1,400-2,200
Headlight Ballast and Igniter Failures (Xenon HID)
Common · low severity
Symptoms: One headlight intermittently goes out then comes back on, Headlight flickers or takes time to warm up, Complete headlight failure on one side
Fix: Ballasts and igniters for the Xenon system fail from heat cycling. Ballast replacement is straightforward: 1-1.5 hours labor per side. Use OE Porsche or quality aftermarket (Hella, Osram)—cheap eBay units fail quickly.
Estimated cost: $600-1,000
Owner tips
Check oil level EVERY fill-up—consumption over 1 qt/1,000 mi means scoring has started; walk away or negotiate engine replacement into price
Get pre-purchase borescope inspection of all cylinders; scoring shows as vertical scratches on cylinder walls
Replace ALL coolant pipes preventively at 60k-70k miles—cheap insurance against the $20k engine rebuild
Service transmission fluid every 40k miles despite 'lifetime fill' claim—extends transmission and cooler life
Budget $2,000-3,000/year for maintenance and repairs beyond normal wear items; these are not cheap to own
Only buy with comprehensive pre-purchase inspection including borescope, confirmed maintenance records showing coolant pipe replacement, and cash reserves for inevitable repairs—or find a lower-mileage example with extended warranty.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
Fitment notes: AGM battery required; located under driver's seat
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Every control module on the 2011-2014 Porsche Cayenne S — where it lives, replacement time, and what it takes to program a replacement. Modules marked dealer / factory tool won't work after a part swap alone — budget for programming.
Power Steering Control Unit (EPS)2.5 hr R&Rdealer / factory tool +0.8 hr▸ programming details
📍 Steering column, below dashboard
🔧 PIWIS II
⚠️ Electric power steering; steering angle sensor calibration required after replacement
Transmission Control Unit (TCU)2.5 hr R&Rdealer / factory tool +1.0 hr▸ programming details
📍 Transmission housing, driver side, accessed from underneath
⚠️ Battery registration required after replacement; start-stop system equipped vehicles
Kessy Control Unit / Immobilizer (KESSY)0.8 hr R&Rsecurity gateway +1.2 hr▸ programming details
📍 Dashboard, left side of steering column
🔧 PIWIS II + PPN online
⚠️ All keys must be reprogrammed; DME synchronization required; online authentication mandatory
Seat Memory Control Unit (Seat Module)0.8 hr R&Raftermarket tool +0.2 hr▸ programming details
📍 Under driver seat, mounted to seat frame
🔧 Autel MaxiSys / PIWIS II
⚠️ Memory positions lost; user reprogramming required
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
Porsche Cars North America, Inc. (Porsche) is recalling certain 2003-2020 Porsche Macan, Cayenne, Panamera, and Cayman S, 2001-2004 Boxster, Boxster S, 2004 Boxster 50 JAHRE SPYDER 550 vehicles. Please see the recall report for a complete list of all affected models and model years. The caps that cover the low-beam headlight horizontal adjustment screws are missing, which can allow the headlights to be improperly adjusted. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
Consequence: Improperly adjusted headlights may not illuminate the road properly, or cause a glare to oncoming drivers, which can increase the risk of a crash.
Remedy: Dealers will inspect the headlights for sealing caps and install missing caps as necessary, free of charge. Owner notification letters were mailed October 28, 2022. Owners may contact Porsche's customer service at 1-800-767-7243. Porsche's number for this recall is ANB4.
ENGINE · 17V368000
2017-06-07
Porsche Cars North America, Inc. (Porsche) is recalling certain 2010-2012 Panamera S, Panamera 4S and Panamera Turbo vehicles, 2011-2012 Panamera and Panamera 4 vehicles, and 2011 Cayenne S and Cayenne Turbo vehicles. The affected vehicles have camshaft controllers that may come loose inside the engine, potentially resulting in an engine stall.
Consequence: An engine stall can increase the risk of a crash.
Remedy: Porsche will notify owners, and dealers will replace the fastening screws for the camshaft adjusters, free of charge. Owner notification letters were mailed January 12, 2018. Owners will receive a second notice when the remedy is available. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AH08.
SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES · 16V169000
2016-03-23
Porsche Cars North America, Inc. (Porsche) is recalling certain model year 2011-2016 Cayenne vehicles manufactured April 28, 2010, to January 11, 2016. The brake pedal pivot pin may be missing a circlip, allowing the pivot pin to move and the brake pedal to dislodge.
Consequence: If the brake pedal dislodges, the driver may not be able to apply the brakes, increasing the risk of a crash.
Remedy: Porsche will notify owners, and dealers will inspect the brake pedal assembly circlip, installing any missing circlips, free of charge. The recall began on July 8, 2016. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AG02.
EXTERIOR LIGHTING:HEADLIGHTS · 12V065000
2012-02-21
PORSCHE IS RECALLING CERTAIN MODEL YEAR 2011-2012 CAYENNE, CAYENNE S, CAYENNE S HYBRID, AND CAYENNE TURBO VEHICLES MANUFACTURED FROM MARCH 8, 2010, THROUGH JANUARY 31, 2012 BECAUSE THE HEADLAMPS MAY COME LOOSE AND DETACH FROM THE FENDER.
Consequence: A DETACHED HEADLIGHT COULD LEAD TO LOSS OF VISIBILITY AND AN INCREASED RISK OF A CRASH.
Remedy: PORSCHE WILL NOTIFY OWNERS, AND DEALERS WILL REPLACE THE HEADLAMP LOCKING ASSEMBLIES, FREE OF CHARGE. THE SAFETY RECALL BEGAN ON MARCH 9, 2012. OWNERS MAY CONTACT PORSCHE AT 1-800-767-7243.
Performance
Horsepower
400hp
Torque
369lb-ft
0–60 mph
5.5sec
Quarter mile
14.0sec
Top speed
160mph
Fuel economy (EPA)
City
16mpg
Highway
22mpg
Combined
18mpg
Fuel
Premium Gasoline
Capability & size
Towing capacity
7,716lb
Payload
1,213lb
Curb weight
4,916lb
EPA class
Sport Utility Vehicle - 4WD
Wiper blades
Second generation (958). Changed to asymmetric front blade lengths.
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 2011 Porsche Cayenne S 4.8L V8 and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years.