# Dieter Quester

Dieter Quester (born 30 May 1939) is an Austrian former racing driver. Quester participated in 53 24-Hour Races. He competed in a single Formula One race in which he finished ninth.
Starting with motorboats in the 1950s, he became part of the Formula 2 team of BMW which intended to take part in the 1969 German Grand Prix. Teammate Gerhard Mitter was killed at the Nürburgring while practising with the BMW 269, though. As a suspension or steering failure was suspected, the BMW team with Quester and Hubert Hahne withdrew from the race, as did Mitter's teammate at Porsche, Hans Herrmann.
Quester participated in his home 1974 Austrian Grand Prix on 18 August 1974. He out-qualified his three team mates at Surtees and finished 9th ahead of Hans-Joachim Stuck and double World Champion Graham Hill in the race, but scored no championship points.
Quester then focused again on European Touring Car Championship to drive a BMW 3.0 CSL for Schnitzer Motorsport. Quester had already won the 1973 Spa 24 Hours. Later racing in the DTM, he once slid on the roof of his BMW M3 over the start/finish line of the AVUS for a 3rd place.
His career was still active at age 70, sponsored by Red Bull. On 15 January 2006 he won the 24 Hours race at the Dubai Autodrome on a BMW M3 together with Hans-Joachim Stuck, Philipp Peter and Toto Wolff. Stuck and Quester returned in the 24 Hours Nürburgring, but their BMW was destroyed in a crash at night that involved an oil spill and seven cars. During the weekend of 9–10 September 2006, he won the Britcar 24 Hours of Silverstone in a Duller Motorsport BMW M Roadster#Z4 M Roadster (2006–2008), and on 14 January 2007 he again won the 24 Hours race at the Dubai Autodrome in the Duller Motorsport BMW Z4 (E85). In September 2007 he and Duller won the 24 Hours of Silverstone in the Duller BMW Z4 (E85), by a margin of 30 laps.
Quester took part in his final race at the HSR Classic Daytona in November 2018 at the age of 79.

## Racing record
### Complete European Formula Two Championship results

(key) (Races in bold indicate pole position; races in italics indicate fastest lap)
| Year | Entrant | Chassis | Engine | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | Pos. | Pts |
| 1969 | Bayerische Motoren Werke | BMW 269 | BMW M11 | THR | HOC | NÜR | JAR | TUL Ret | PER | VAL Ret | | | | | | | | NC | 0 |
| 1970 | Bayerische Motoren Werke | BMW 269 | BMW M11 | THR 7 | HOC Ret | BAR 5 | ROU DNQ | PER Ret | TUL Ret | IMO Ret | | | | | | | | 4th | 14 |
| 1970 | Bayerische Motoren Werke | BMW 270 | BMW M11 | | | | | | | | HOC 1 | | | | | | | 4th | 14 |
| 1971 | Eifelland Wohnwagenbau | Brabham BT30 | Cosworth FVA | HOC Ret | THR | | | | | | | | | | | | | 3rd | 31 |
| 1971 | Eifelland Wohnwagenbau | March 712M | BMW M11 | | | NÜR Ret | JAR 2 | PAL Ret | ROU 2 | MAN 10 | TUL 3 | ALB Ret | VAL 2 | VAL 2 | | | | 3rd | 31 |
| 1972 | Matchbox Team Surtees | Surtees TS10 | Ford BDA | MAL | THR | HOC | PAU | PAL | HOC | ROU | ÖST Ret | IMO | MAN | PER | SAL | ALB | HOC | NC | 0 |
| 1974 | Team Harper | March 742 | BMW | BAR | HOC Ret | PAU DNS | | | | | | | | | | | | NC | 0 |
| 1974 | Team Harper | Chevron B27 | Ford BDA | | | | SAL 11 | HOC Ret | MUG Ret | KAR NC | PER | HOC | VAL | | | | | NC | 0 |

### Complete Formula One results

(key) (Races in bold indicate pole position, races in italics indicate fastest lap)
| Year | Entrant | Chassis | Engine | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | WDC | Pts |
| 1969 | Bayerische Motoren Werke | BMW 269 | BMW M12/1 1.6 L4 | RSA | ESP | MON | NED | FRA | GBR | GER DNS | ITA | CAN | USA | MEX | | | | | NC | 0 |
| 1974 | Memphis International Team Surtees | Surtees TS16 | Ford Cosworth DFV 3.0 V8 | ARG | BRA | RSA | ESP | BEL | MON | SWE | NED | FRA | GBR | GER | AUT 9 | ITA | CAN | USA | NC | 0 |
| Source: |||||||||||||||||||||

### Complete British Saloon Car Championship results

(key) (Races in bold indicate pole position; races in italics indicate fastest lap.)
| Year | Team | Car | Class | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | Pos. | Pts | Class |
| 1969 | BMW AG | BMW 2002 TI | C | BRH | SIL | SNE Ret | THR Ret | SIL | CRY | MAL | CRO | SIL | OUL | BRH | BRH | NC | 0 | NC |
| 1973 | BMW Motorsport | BMW 3.0 CSL | D | BRH | SIL | THR | THR | SIL | ING | BRH | SIL 17 | BRH | | | | 59th | 1 | 11th |
| 1978 | BMW (GB) | BMW 530i | D | SIL | OUL | THR | BRH | SIL 7† | DON | MAL | BRH Ret | DON | BRH | THR | OUL | 39th | 2 | 12th |
| Source: |||||||||||||||||||
† Events with 2 races staged for the different classes.|}

### Complete 24 Hours of Le Mans results

| Year | Team | Co-Drivers | Car | Class | Laps | Pos. | Class Pos. |
| 1973 | BMW Motorsport | Toine Hezemans | BMW 3.0 CSL | T 5.0 | 307 | 11th | 1st |
| 1976 | BMW Motorsport GmbH | Albrecht Krebs Alain Peltier | BMW 3.5 CSL | Gr.5 | 117 | DNF | DNF |
| 1978 | BMW Great Britain Tolemans Racing | Tom Walkinshaw Rad Dougall | Osella PA6-BMW | S 2.0 | 113 | DNF | DNF |
| 1979 | March Racing | Guy Edwards Ian Grob | BMW M1 | S +2.0 | - | DNQ | DNQ |
| 1980 | B.M.W. France | Didier Pironi Marcel Mignot | BMW M1 | IMSA | 293 | 14th | 4th |
| 1981 | Würth-Lubrifilm Team Sauber | Marc Surer David Deacon | BMW M1 | Gr.5 | 207 | DNF | DNF |
| 1982 | BASF Cassetten Team GS Sport | Hans-Joachim Stuck Jean-Louis Schlesser | Sauber SHS C6-Ford | C | 76 | DNF | DNF |
| 1983 | John Fitzpatrick Racing | John Fitzpatrick David Hobbs | Porsche 956 | C | 135 | DNF | DNF |
| 1985 | Sauber Racing | John Nielsen Max Welti | Sauber C8-Mercedes | C1 | - | DNS | DNS |
| 1986 | Kouros Racing Team | Henri Pescarolo Christian Danner | Sauber C8-Mercedes | C1 | 86 | DNF | DNF |
| Source: ||||||||

### Complete Deutsche Tourenwagen Meisterschaft results

(key) (Races in bold indicate pole position) (Races in italics indicate fastest lap)
| Year | Team | Car | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | Pos. | Pts |
| 1988 | BMW M Team Linder | BMW M3 | ZOL 1 10 | ZOL 2 13 | HOC 1 5 | HOC 2 4 | NÜR 1 26 | NÜR 2 13 | BRN 1 6 | BRN 2 10 | AVU 1 5 | AVU 2 17 | MFA 1 8 | MFA 2 7 | NÜR 1 Ret | NÜR 2 6 | NOR 1 12 | NOR 2 18 | | | | | | | | | 9th | 167 |
| 1988 | BMW M Team Linder | BMW M3 Evo | | | | | | | | | | | | | | | | | WUN 1 10 | WUN 2 13 | SAL 1 C | SAL 2 C | HUN 1 9 | HUN 2 9 | HOC 1 Ret | HOC 2 25 | 9th | 167 |
| 1989 | BMW M Team Zakspeed | BMW M3 Evo | ZOL 1 7 | ZOL 2 14 | HOC 1 12 | HOC 2 9 | NÜR 1 4 | NÜR 2 3 | MFA 1 DNQ | MFA 2 3 | AVU 1 7 | AVU 2 Ret | NÜR 1 Ret | NÜR 2 DNS | NOR 1 8 | NOR 2 5 | HOC 1 10 | HOC 2 Ret | DIE 1 | DIE 2 | NÜR 1 | NÜR 2 | HOC 1 | HOC 2 | | | 15th | 127 |
| 1990 | BMW M Team Zakspeed | BMW M3 Sport Evo | ZOL 1 Ret | ZOL 2 DNS | HOC 1 Ret | HOC 2 DNS | NÜR 1 Ret | NÜR 2 DNS | AVU 1 3 | AVU 2 9 | MFA 1 10 | MFA 2 12 | WUN 1 23 | WUN 2 DNS | NÜR 1 8 | NÜR 2 Ret | NOR 1 12 | NOR 2 Ret | DIE 1 13 | DIE 2 9 | NÜR 1 15 | NÜR 2 11 | HOC 1 Ret | HOC 2 DNS | | | 20th | 20 |
| 1991 | Linder M Team | BMW M3 Sport Evo | ZOL 1 24 | ZOL 2 Ret | HOC 1 15 | HOC 2 27 | NÜR 1 Ret | NÜR 2 DNS | AVU 1 18 | AVU 2 Ret | WUN 1 14 | WUN 2 17 | NOR 1 15 | NOR 2 12 | DIE 1 Ret | DIE 2 DNS | NÜR 1 16 | NÜR 2 Ret | ALE 1 | ALE 2 | HOC 1 | HOC 2 | BRN 1 19 | BRN 2 12 | DON 1 13 | DON 2 Ret | NC | 0 |

### Complete Super Tourenwagen Cup results

(key) (Races in bold indicate pole position) (Races in italics indicate fastest lap)
| Year | Team | Car | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | Pos. | Pts |
| 1994 | BMW Team Isert | BMW 318i | AVU | WUN | ZOL | ZAN | ÖST 16 | SAL 13 | SPA | NÜR | 28th | 0 |

### Complete FIA GT Championship results

(key) (Races in bold indicate pole position) (Races in italics indicate fastest lap)
| Year | Team | Car | Class | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | Pos. | Pts |
| 1997 | Viper Team Oreca | Chrysler Viper GTS-R | GT2 | HOC | SIL | HEL | NÜR | SPA | A1R 3 | SUZ | DON | MUG | SEB | LAG | 25th | 4 |
| 2000 | RWS Red Bull Racing | Porsche 911 GT3-R | N-GT | VAL | EST | MNZ | SIL | HUN 4 | ZOL | A1R Ret | LAU 1 | BRN 2 | MAG 2 | | 6th | 25 |
| 2001 | RWS Motorsport | Porsche 911 GT3-RS | N-GT | MNZ 2 | BRN 1 | MAG 2 | SIL | ZOL | HUN | SPA 1 | A1R Ret | NÜR 6 | JAR 2 | | 4th | 52 |
| 2001 | RWS Motorsport | Porsche 911 GT3-R | N-GT | | | | | | | | | | | EST 4 | 4th | 52 |
| 2002 | RWS Motorsport | Porsche 911 GT | GT | MAG Ret | SIL 7 | BRN 10 | JAR | AND | OSC | | | | | | NC | 0 |
| 2002 | Dart Racing | Ferrari 550 Maranello | GT | | | | | | | | PER Ret | DON Ret | EST Ret | | NC | 0 |
| 2002 | RWS Motorsport | Porsche 911 GT3-R | N-GT | | | | | | | SPA Ret | | | | | 29th | 3.5 |

### Britcar 24 Hour results

| Year | Team | Co-Drivers | Car | Car No. | Class | Laps | Pos. | Class Pos. |
| 2007 | Duller Motorsport | Jamie Campbell-Walter Johannes Stuck Dirk Werner | BMW Z4 M Coupé | 1 | GT3 | 596 | 1st | 1st |