Porsche 928 S4 (1990)

Kickdown Check

• On-site kickdown assessment completed
• 274 photos
• Paint thickness measurement
• Video including engine running
• Low mileage of only 99,482 km, verifiable via service records and TÜV reports
• Classic Data brief evaluation from 2023 with a grade of 2 available

Facts & Specifications

• Year of manufacture: 1990
• First registration: Germany
• Engine: 5.0-liter V8 engine with 320 hp (235 kW)
• Transmission: Automatic
• Exterior color: Midnight Blue Pearl
• Interior: Black leather upholstery
• TÜV valid until 05/2027 & H-license plate
• Features:
• Air conditioning
• Blaupunkt Bremen SQR 49 radio
• On-board computer
• Power seats
• Power windows
• Sunroof
• Eton sound system
• The following modifications were made:
• Conversion to GTS styling using original parts

Condition

Exterior

• The exterior color of the 928 is Midnight Blue Pearl
• There are some areas of repainting. Paint thickness measurements yielded values between 151 and 591 micrometers
• The paint and body are in very good condition with only minor age-related signs of wear
• The paint was extensively refinished in 2022
• There have been no accidents under the current ownership, and there is no evidence of any accidents under previous ownership. The current owner had the Porsche inspected (Images 234 and 235), and no abnormalities were found. It can therefore be assumed that the car is accident-free
• Michelin tires from 2016 with approx. 4–6 mm of tread depth are fitted
• There is no known rust

Interior

• The Porsche is equipped with black leather
• The interior is in very well-maintained original condition, with only minimal age-related signs of wear
• Seats from the Turbo model with wider seat bolsters have been installed.
• New high-quality speakers were installed in 2021
• There are no known damages or defects in the interior

Mechanics

• The Porsche is ready to drive immediately
• The engine idles smoothly and revs up cleanly
• The transmission shifts smoothly and seamlessly
• There are no known defects in the suspension
• All equipment functions perfectly with no defects
• The timing belt and water pump are due for replacement soon (last replaced in 2015 at 77,462 kilometers)

History

Ownership history

• 2021 to present: current owner
• 2017 to 2021: 6th owner
• 2015 to 2017: 5th owner
• 1998 to 2015: 4th owner
• 1993 to 1998: 3rd owner
• 1992 to 1993: 2nd owner
• 1990 to 1992: 1st owner

Service History

• December 19, 1991 at approx. 4,286 km – First inspection / vehicle maintenance at the Porsche Center
• December 8, 1992 at approx. 21,005 km – Maintenance including engine oil change at the Porsche Center Berlin
• May 19, 1994 at approx. 38,500 km – Maintenance / Engine oil change at the Porsche Center Berlin
• July 14, 1994 at approx. 42,000 km – Engine overhaul
• August 19, 1994 at approx. 43,000 km – Condition report prepared as part of the extended warranty (Porsche Center Berlin)
• August 19, 1994 at approx. 43,443 km – Maintenance following repairs at the Porsche Center Berlin
• December 22, 1994 at approx. 47,802 km – Maintenance / Engine oil change at Porsche Center Berlin
• Nov. 15, 1995 at approx. 49,868 km – Annual inspection at Porsche Center Berlin
• August 19, 1994 at approx. 43,454 km – Camshaft belt inspected
• March 20, 2015 at approx. 77,462 km – Engine oil change at Porsche Center Berlin
• October 24, 2018 at approx. 89,340 km – Engine oil change incl. filter
• Nov 2020 at approx. 95,500 km – Engine oil change incl. filter
• June 8, 2021 at approx. 96,199 km – Engine oil change
• June 8, 2021 at approx. 96,188 km – Brake fluid and coolant replaced
• Additional documented work includes steering gear, air conditioning system with compressor, valve cover gasket, hydraulic mounts, oil pan gasket, and intake manifold
• Documented investments totaling approximately €12,500

Documents

• German vehicle documents (Images 216 to 219)
• Service record book (Images 220 to 227)
• Classic Data appraisal (Images 228 to 230)
• Ownership and investment history (Image 231)
• Invoices (Images 232 to 259)
• TÜV documents (Figures 260 to 278)

Summary

For sale is a Porsche 928 S4 in Night Blue Pearl color with a black leather interior. This 928, originally delivered in Germany, is a very well-maintained classic with a verifiable history, a service record, and a verifiable low mileage of 99,482 km. Particularly noteworthy are the engine overhaul performed at approximately 42,000 km, the existing Classic-Data rating of 2, and numerous documented maintenance and repair works. The conversion to GTS styling using original parts, the H-license plate, and the harmonious color combination underscore the attractive overall impression of this 928 S4.