Owning a BMW E9 in the 1980s — As Told by the CS Register Newsletter
The Community:
The CS Register launched in January 1981 under new editors Charles and Sarah Richardson, with about 30 members and hopes to reach 200. Charlie called it a “mutual survival society” — a phrase still in use at decade’s end. By 1987 nearly 40 members gathered at Laguna Seca in what was called the largest CS gathering in U.S. history; by 1989 that event had swelled to over 60 coupes. The community grew steadily, fueled by shared tips, parts hunting, and a common devotion to the cars. A teenager spotting a member’s 1972 CSi told his friend “that’s one of those new BMWs.” He was serious. The owner didn’t correct him.
Values — Early-to-Mid 1980s:
All values approximate 2026 USD.
1971 2800 CS, triple Webers, headers — ~$37,000
1972 3.0 CS, solid daily driver — ~$32,000
1972 3.0 CSL, genuine “L,” aluminum panels — ~$46,000
1973 3.0 CS, excellent condition — ~$26,000
1974 3.0 CSi, European spec, no restoration needed — ~$49,000
1973 3.0 CSi, front-damaged project — ~$5,500
A solid driver ran $26,000–$49,000. Projects and parts cars: $5,000–$10,000.
Values Changed by the Early 1990s:
All values approximate 2026 USD.
1972 3.0 CSi, 120k km, minimal rust — ~$29,500
1973 3.0 CS, 28,000 miles, original owner, always garaged — ~$44,000
1973 3.0 CS, Webers, motivated seller — ~$20,000
1973 3.0 CSi, recently restored, flawless — ~$31,500
1973 3.0 CSL, 15,300 original miles, never touched, all paperwork — ~$126,000
Ordinary drivers were stable in real terms, still $20,000–$32,000. The CSL had broken away entirely — that 15,300-mile example shows it was already a serious collector car. By 1991 members were actively trying to sell, recognizing the cars as appreciating assets. The window for buying something special cheaply had closed.
Problems:
Rust was the defining challenge. It attacked rockers, door bottoms, inner and outer front fenders, floor pans, and anywhere moisture could sit. One member did a full bare-shell restoration and concluded the rust had come from the inside out, seeping past window rubbers. The verdict across many writers: Karmann’s construction left “numerous places for rain and road spray to get under the metal.”
Cooling was the most statistically documented failure — a period owner survey found 38% of E9 owners had cooling trouble. Water pumps failed at an average of 32,000 miles. Original fan clutches were called “garbage — expensive and short-lived.” The fix was either an upgraded later-model clutch or an electric fan conversion.
Gearbox trouble hit 16% of owners, mostly weak 2nd-gear synchros — a rate that didn’t improve much even after BMW redesigned the box for the 3-liters.
Instruments failed for 30% of owners, with the VDO clock the worst offender followed by the fuel gauge.
Valve train noise was usually the fault of mechanics adjusting valves too loosely, causing “clatter, poor performance, and potentially damaged parts.”
Smog equipment was universally despised. The “one-hour de-smog” — removing EGR pipes and simplifying vacuum lines — was described as curing “just about every problem with the engine.” One California member eventually swapped in a complete M5 drivetrain rather than recertify his modified car.
Electrics troubled about 9% of owners, mostly window motors. They could appear dead when simply ungrounded — the brown wire had to be connected or the motor locked up.
Parts
Early on it was almost entirely member-to-member: classifieds for transmissions, differentials, wood dashes, rubber seals, and parts cars. CS Parts Microfiche copies traded for $5 each. Specialty dealers slowly emerged — Maximillian Importing in Baltimore could get new wood dashes from Germany and later stocked CSL aluminum panels. By 1989 the first dedicated CS restoration parts catalog existed. Body panels remained painful throughout — “expensive and unavailable.” Cross-model finds helped: the Bavaria 19mm sway bar fit perfectly, 2002 gas tanks and starters were interchangeable, and tii alternators worked in the coupes.
The Overall Feeling
What comes through the newsletters is people genuinely in love with these cars — not as investments but as machines to drive, fix, and share. A period survey found 62% of owners described their driving style as “hard” and another 14% as “very hard.” One member after seven years: “I just enjoy the hell out of it. It’s fun to drive, handles beautifully, and is relatively simple to fix. I doubt if I would ever sell.” Through most of the 1980s the E9 was simply a very good, slightly temperamental old car — and the CS Register was the place its devoted drivers found each other.
The Community:
The CS Register launched in January 1981 under new editors Charles and Sarah Richardson, with about 30 members and hopes to reach 200. Charlie called it a “mutual survival society” — a phrase still in use at decade’s end. By 1987 nearly 40 members gathered at Laguna Seca in what was called the largest CS gathering in U.S. history; by 1989 that event had swelled to over 60 coupes. The community grew steadily, fueled by shared tips, parts hunting, and a common devotion to the cars. A teenager spotting a member’s 1972 CSi told his friend “that’s one of those new BMWs.” He was serious. The owner didn’t correct him.
Values — Early-to-Mid 1980s:
All values approximate 2026 USD.
1971 2800 CS, triple Webers, headers — ~$37,000
1972 3.0 CS, solid daily driver — ~$32,000
1972 3.0 CSL, genuine “L,” aluminum panels — ~$46,000
1973 3.0 CS, excellent condition — ~$26,000
1974 3.0 CSi, European spec, no restoration needed — ~$49,000
1973 3.0 CSi, front-damaged project — ~$5,500
A solid driver ran $26,000–$49,000. Projects and parts cars: $5,000–$10,000.
Values Changed by the Early 1990s:
All values approximate 2026 USD.
1972 3.0 CSi, 120k km, minimal rust — ~$29,500
1973 3.0 CS, 28,000 miles, original owner, always garaged — ~$44,000
1973 3.0 CS, Webers, motivated seller — ~$20,000
1973 3.0 CSi, recently restored, flawless — ~$31,500
1973 3.0 CSL, 15,300 original miles, never touched, all paperwork — ~$126,000
Ordinary drivers were stable in real terms, still $20,000–$32,000. The CSL had broken away entirely — that 15,300-mile example shows it was already a serious collector car. By 1991 members were actively trying to sell, recognizing the cars as appreciating assets. The window for buying something special cheaply had closed.
Problems:
Rust was the defining challenge. It attacked rockers, door bottoms, inner and outer front fenders, floor pans, and anywhere moisture could sit. One member did a full bare-shell restoration and concluded the rust had come from the inside out, seeping past window rubbers. The verdict across many writers: Karmann’s construction left “numerous places for rain and road spray to get under the metal.”
Cooling was the most statistically documented failure — a period owner survey found 38% of E9 owners had cooling trouble. Water pumps failed at an average of 32,000 miles. Original fan clutches were called “garbage — expensive and short-lived.” The fix was either an upgraded later-model clutch or an electric fan conversion.
Gearbox trouble hit 16% of owners, mostly weak 2nd-gear synchros — a rate that didn’t improve much even after BMW redesigned the box for the 3-liters.
Instruments failed for 30% of owners, with the VDO clock the worst offender followed by the fuel gauge.
Valve train noise was usually the fault of mechanics adjusting valves too loosely, causing “clatter, poor performance, and potentially damaged parts.”
Smog equipment was universally despised. The “one-hour de-smog” — removing EGR pipes and simplifying vacuum lines — was described as curing “just about every problem with the engine.” One California member eventually swapped in a complete M5 drivetrain rather than recertify his modified car.
Electrics troubled about 9% of owners, mostly window motors. They could appear dead when simply ungrounded — the brown wire had to be connected or the motor locked up.
Parts
Early on it was almost entirely member-to-member: classifieds for transmissions, differentials, wood dashes, rubber seals, and parts cars. CS Parts Microfiche copies traded for $5 each. Specialty dealers slowly emerged — Maximillian Importing in Baltimore could get new wood dashes from Germany and later stocked CSL aluminum panels. By 1989 the first dedicated CS restoration parts catalog existed. Body panels remained painful throughout — “expensive and unavailable.” Cross-model finds helped: the Bavaria 19mm sway bar fit perfectly, 2002 gas tanks and starters were interchangeable, and tii alternators worked in the coupes.
The Overall Feeling
What comes through the newsletters is people genuinely in love with these cars — not as investments but as machines to drive, fix, and share. A period survey found 62% of owners described their driving style as “hard” and another 14% as “very hard.” One member after seven years: “I just enjoy the hell out of it. It’s fun to drive, handles beautifully, and is relatively simple to fix. I doubt if I would ever sell.” Through most of the 1980s the E9 was simply a very good, slightly temperamental old car — and the CS Register was the place its devoted drivers found each other.