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Porsche Expertise You Can Trust

Porsche vehicles are engineered to a standard most shops never encounter. From the flat-six boxer engines in the 911 and Cayman to the twin-turbo V8s in the Cayenne and Panamera, every Porsche drivetrain demands specialized knowledge and precision tooling. At Cedar Automotive, we bring European-specialist experience to every Porsche that rolls into our Cedar Rapids shop. We understand Porsche engineering inside and out, and we use manufacturer-level diagnostic equipment to service your vehicle the right way.

Whether you drive a weekend 911, a daily-driven Macan, or a high-mileage Cayenne, we provide the same level of technical care you'd expect from a Porsche dealer — at independent shop rates. We follow Porsche technical procedures, source OEM-quality parts, and keep your vehicle performing the way Stuttgart intended.

Cedar Automotive is conveniently located near Cedar Rapids Regional Airport. Need your Porsche serviced while you travel? Drop it off before your flight and pick it up when you land.

Porsche Services We Provide

  • Oil service using Porsche-approved lubricants and filters
  • Brake pad and rotor replacement — including PCCB ceramic brake inspection
  • PDK dual-clutch transmission fluid service and mechatronic repair
  • Suspension and PASM (Porsche Active Suspension Management) diagnostics and repair
  • Engine repair including IMS bearing retrofit and bore scoring diagnosis
  • Coolant system service — pipe replacement, expansion tank, and thermostat
  • Electrical system diagnostics — DME, PSM, PCM, and module coding
  • Performance tuning, exhaust upgrades, and intake modifications
  • Car key and key fob programming
Porsche repair and service at Cedar Automotive in Cedar Rapids, IA

Common Porsche Issues We Diagnose and Repair

IMS Bearing Failure (986/996/987/997)

The intermediate shaft bearing on early M96 and M97 flat-six Porsches is the single most expensive failure these cars experience. A failing bearing leaves metal shavings in the oil before it takes the engine with it. We drop the transmission, inspect the IMS, and fit an upgraded bearing — ceramic or needle kit — so you drive with confidence.

Rear Main Seal (RMS) Leak

A seeping rear main seal is almost universal on 986, 996, 987, and early 997 Porsches. Oil on the bellhousing eventually fouls the clutch or torque converter. We pull the transmission once to address the RMS, IMS, and clutch together so you are not paying the labor three separate times.

Coolant Expansion Tank Crack

The plastic coolant expansion tank on 996, 997, 981, and 991 Porsches cracks along the seam with age and heat cycling. Loss of coolant at highway speed can crack a cylinder head. We replace the tank proactively during routine service and pressure-test the system to confirm no other plastic component is on the edge.

PDK Dual-Clutch Service

The PDK dual-clutch gearbox on 997.2, 991, 981, Panamera, and Cayenne needs a fluid and filter service at 60,000 miles. Skipping it causes harsh shifts, clutch shudder, and a shorter gearbox life. We use the correct factory PDK fluid, perform the filter swap, and clear adaptations so the transmission relearns your driving style.

Ignition Coil Pack Failure

Porsche direct-fire coil packs fail in clusters on 996, 997, Boxster, and Cayman flat-sixes, throwing cylinder-specific misfires. The telltale sign is a rough idle and a check engine light after a cold night. We replace all six coils with the updated Porsche part, inspect the plugs, and confirm fuel trims return to normal before you leave.

Coolant Pipe Adhesive Failure

Early 955 and 957 Cayenne V8 engines use plastic coolant pipes bonded to aluminum adapters with adhesive that fails with heat. When it lets go, coolant loss is sudden and severe. We replace the bonded plastic pipes with updated aluminum pipes so the repair is permanent instead of kicking the can down the road.

Porsche Service — Frequently Asked Questions

Can Cedar Automotive address the Porsche IMS bearing issue?

Yes — the IMS bearing on early M96 and M97 engines is a repair we handle regularly for 986, 996, 987, and early 997 Porsches. We drop the transmission, inspect the bearing, and install a ceramic or needle upgrade kit. Because the labor is identical, we recommend addressing IMS, RMS, and clutch together. Call Cedar Automotive at (319) 450-7584 for a quote based on your specific Porsche chassis.

Do you service Porsche PDK dual-clutch transmissions in Cedar Rapids?

Yes. PDK fluid and filter service at 60,000 miles is one of the most-skipped Porsche services and one of the most expensive to skip. We use the factory Porsche PDK fluid, perform the filter swap, measure fill temperature correctly, and clear adaptations so the gearbox relearns your driving. Properly maintained, a PDK will outlast the rest of the car.

Can Cedar Automotive perform a Porsche pre-purchase inspection?

Yes. Porsche pre-purchase inspections are one of our specialties. We scan every module for stored and pending codes, pressure-test the cooling system, inspect the IMS/RMS area for evidence, check for coolant pipe weeping on Cayennes, and evaluate body panel alignment and accident history. The written report helps you negotiate or walk away. Call (319) 450-7584 to schedule.

Do you program Porsche keys and immobilizer modules?

Yes — we program Porsche keys and immobilizer keys for most 997, 981, 991, Cayenne, Panamera, and Macan models. Porsche key programming requires dealer-level PIWIS access, which Cedar Automotive carries in-house. We handle spare keys, replacement fobs, and some all-keys-lost scenarios. Call (319) 450-7584 so we can verify coverage for your specific Porsche VIN before you make the drive.

Need Porsche Service in Cedar Rapids?

European specialist rates — without the dealership price tag. Call today.

(319) 450-7584