SAAB 900

The **Saab 900** is a mid-sized automobile that was produced by Saab from 1978 until 1998 in two generations. The first generation from 1978 to 1994 is known as the "classic" and the generation from 1994 to 1998 is known as the "new generation".

The "classic" Saab 900 was based on the Saab 99 chassis, though with a longer front end to meet U.S. frontal crash regulations. The 900 was produced in 2- and 4-door sedan, and 3- and 5-door hatchback configurations and, from 1986, as a cabriolet (convertible) model. There were single- and twin-Zenith carburettor, fuel-injected, and turbocharged engines, including both Full Pressure Turbo (FPT), and, in European models during the early 1990s, Low Pressure Turbos (LPT).

## SAAB 900 "Classic"

### Assembly

Sweden: Trollhättan (Trollhättan Assembly)Sweden: ArlövFinland: Uusikaupunki (Valmet Automotive)

## Body and chassis

### Class

Entry-level luxury car/Compact executive car

### Body Style

2-door convertible2/4-door sedan3/5-door liftback (hatchback)

### Layout

Longitudinal front-engine, front-wheel drive

## Powertrain

### Engine

2.0 L B I42.0 L B201 I42.0 L B202 I42.1 L B212 I4

## Dimensions

### Length

4,685 mm (184.4 in)4,680 mm (184.3 in) (S & Turbo)

### Width

1,690 mm (66.5 in)1,695 mm (66.7 in) (Turbo SPG Hatch)

### Height

1,425 mm (56.1 in)1,400 mm (55.1 in) (Turbo Convertible & Turbo)1,405 mm (55.3 in) (Turbo SPG Hatchback)

## Chronology

### Overview

The Saab 900 is a front-engine, front-wheel-drive compact car with a longitudinally-mounted, 45-degree slanted, inline four-cylinder engine, double-wishbone front suspension and beam-axle rear suspension. It was originally introduced on 12 May 1978, for the 1979 model year. Sales commenced in the fall of 1978.

Like its predecessor the 99, the 900 contained a number of unusual design features that distinguish it from most other cars. First, the B-engine, that was installed "backwards", with power delivered from the crank at the front of the car. Second, the transmission, technically a transaxle, bolted directly to the bottom of the engine to form the oil pan (albeit with separate oil lubrication). Thus, power from the crank would be delivered out of the engine at the front, then transferred down and back to the transmission below, via a set of chain-driven primary gears. In a similar fashion, Minis also had their gearbox mounted directly below the engine; however, the Mini gearbox and engine shared the same oil, whereas the Saab 900 (and 99) gearboxes contained a separate sump for engine oil.

Refined over several decades of two-digit Saab models, the 900's double-wishbone suspension design provided excellent handling and road feel. The rear suspension comprised a typical beam axle design stabilized with a Panhard rod. However, the attachment points between the axle and chassis made up an unusual configuration that, in essence, consists of two Watt's linkages at either end of the axle: A lower control arm attaches the axle to the bottom of the vehicle, while an upper link attaches at the top but faces towards the rear, unlike a typical four-link design with both lower and upper links facing forward.

Early models did not have sway bars; they began appearing on certain models in 1985, and, in the U.S. and possibly other markets, became standard on all trim levels by the late 1980s. The sway bars decreased body roll, but at the expense of some ride comfort and when driven aggressively, increased inside wheel spin. The front and rear bars' diameters were unchanged throughout the model's run.

The 900 utilized a deeply curved front windshield, providing the best driver visibility, calling attention to the marque's aircraft legacy. Also underscoring their aircraft lineage, the 900's dashboard was curved to enable easy reach of all controls and featured gauges lit up from the front. Saab engineers placed all controls and gauges in the dashboard according to their frequency of use and/or importance so that the driver need only divert his gaze from the road for the shortest possible time and by the smallest angle. This is why, for example, the oft-used radio is placed so high in the dashboard. In keeping with the paradigm of its predecessor, the 99 models, the 900 employed a door design unique in automotive manufacturing, with an undercutting sweep to meet the undercarriage, forming a tight, solid unit when the door was closed. This feature also eliminated the stoop in the cabin at the footing of the door, as seen in automobiles of other manufacturers, thereby preventing water and debris from collecting and possibly entering the cabin or initiating corrosion, as well as enabling passengers to enter and exit the cabin without need to step over several inches of ledge.

The 900 underwent minor cosmetic design changes for 1987, including restyled front-end and bumpers that went from a vertical to a more sloped design; sheet metal body parts were unchanged. Being a small car factory, for economic reasons, Saab kept the basic undercarriage more or less unchanged throughout the 900's production run.

The Saab 900 could be ordered with different options. One highly sought-after option was called the *Aero* or, as it was known in the U.S. "Special Performance Group" (SPG). The Aero/SPG incorporated (depending on the market and model year) a body skirt; a sport-suspension (1987+) that included shorter, stiffer springs, stiffer shocks, and sway bars; leather seats; premium stereo; and air conditioning. Each of these features could, of course, be ordered independently from Saab's Accessories Catalog for fitment to standard models. Another desirable UK option at this time was the fitment of very distinctive Minilite alloy wheels. Initially, these had the words 'Minilite' and 'Saab' cast in raised lettering (later Saabs had a remarkably similar copy but made by Ronal). Power output varied by model year and market, but 900S and 900 Turbo models produced after 1985 were fitted with a 16-valve engine, while the basic 900 kept the earlier 8-valve engine.

A 1989 Saab 900 SPG owned by Peter Gilbert of Wisconsin, was driven over a million miles, before being donated to The Wisconsin Automotive Museum. Peter Gilbert claimed a million miles out of the turbocharging unit in addition to the engine itself. Saab gave Mr. Gilbert a Saab 9-5 Aero.

### History

1979 900 was available in three versions of the B-engine: The GL had the single-carb 100 PS (73.5 kW) engine, the GLs had twin carburetors for 108 PS (79 kW), the EMS and GLE had fuel injection for 118 PS (87 kW), and the 900 Turbo produced 145 PS (107 kW). The only bodywork originally available was the three or five-door hatchback style, which was seen as more modern at the time. The EMS was only available with three doors while the automatic-equipped GLE was only offered with five.[2] Saab's model years were generally introduced in August/September of the preceding year.

The Turbo had a different grille from the naturally aspirated models, which received a design with a hexagonal central element. For the 1980 model year, all versions received the sleeker turbo-style grille. The 1980 900 also received larger taillights rather than the earlier 99 units, as well as lower, adjustable headrests up front. 1980 was also the first year for a five-speed gearbox, originally only available in the EMS and the Turbo.[3]

The four-door 900 sedan was introduced in Geneva 1980, as a result of dealer pressure.[1] This introduction corresponded with the phase-out of the old Saab B engine in favor of the lighter Saab H engine. In the early 1980s, most 900s were produced in Trollhättan. However, coinciding with the production of the 9000, more 900's were produced elsewhere. The Valmet plant in Finland, referenced below under the 900c, also produced regular 900s, a total of 238,898 examples.[4] The plant in Arlöv (now closed), near Malmö, also produced some 900s. For 1981 all models except for the GL three-door received a considerable boost in equipment, as well as broader side trims, larger luggage compartments and fuel tanks. The spare tire was moved to underneath the floor, rather than standing upright in the luggage compartment.[2] The GLE was now only available as a four-door sedan.

A big change for 1982 was the introduction of Saab's Automatic Performance Control (APC), a.k.a. boost controller. The APC employed a knock sensor, allowing the engine to use different grades of gasoline without engine damage. Another new feature that year was the introduction of central locking doors (on the GLE and Turbo). The long-wheelbase 900 CD was also introduced. Asbestos-free brakes were introduced in 1983, an industry first.[5] The front discs were semi-metallic while the rears were made from silica. The GLE and EMS models gained a new central console, while the decor strips on the bumpers of all models were made wider (necessitating wider trim pieces on the flanks as well).[5] A new luxury package was made available on Turbo cars, while the EMS gained new wheels, a front spoiler, a sunroof, and a sport steering wheel. It was only available as a three-door hatchback in silver metallic.[2] A new model also appeared during that year in Sweden — the five-door GLi, which used the fuel injected engine.

Model year 1984 saw the introduction of the 16-valve DOHC *B202* engine in Europe. With a turbocharger and intercooler, it could produce 175 hp/129 kW in the Turbo 16 model (less for catalyst-equipped engines). The Turbo 16 Aero [designated SPG, Special Performance Group in North American Markets] had a body kit allowing the car to reach 210 km/h (130 mph). A different grille and three-spoke steering wheel appeared across all models. The connection between the side strips and the bumpers was changed, EMS and Turbo hatchbacks received a black trim piece between the taillights, and the GLi began replacing the twin-carburetted GLs. At the 1983 Frankfurt Motor Show a two-door sedan was shown; it went on sale in January 1984, initially only as a GLi. The two-door sedan was only ever built at the Valmet plant in Finland.[2]

The dual-carb model (and "GL" nomenclature) was gone for 1985. Now, the base 900 had the single-carburetor engine, while the 900i added fuel injection. Two turbocharged models were offered: The 900 Turbo had the 8-valve engine, while the Turbo 16 (also Aero) had the 16-valve intercooled unit. Wheel trims (naturally aspirated cars) and alloys (turbos) were redesigned, and the Turbos also received chromed grilles.[2] The 8-valve turbo received an intercooler for 1986, bringing up power to 155 PS (114 kW), while the 16-valve cars had hydraulic engine mounts. The eight-valve Turbo was also available as a two-door. Side marker lights at the rear of the front fenders were also added, while the 900i gained new interior fabrics.[2] The new Saab-Scania badge was introduced, placed in the steering wheel, on the bonnet, and on the bootlid. 1986 also marked the introduction of the 16-valve 900i 16 and 900 convertible, both only for North America initially.

#### 1978 facelift

A new grille, headlights, front sidelights and so-called "integrated" bumpers freshened the 900's look for 1987, though the sheet metal was largely unchanged. Several common parts for the 900 and 9000 were introduced for 1988 model year, including brakes and wheel hubs. This also meant that Saab finally abandoned the use of parking brakes which acted on the front wheels.[6] Power steering was added on the 900i. The base 900, available with two or four doors, kept the pre-facelift appearance for 1987. Also new was the carburetted 900c.[2] The Aero model received slightly bigger fender extensions so as to accommodate larger wheels, while the window trim was blacked out on all models. For 1988 catalyzed models of all fuel injected engines became available to European buyers, all with cruise control as standard to further help lower emissions. A water and oil cooled turbocharger (replacing the older oil-cooled unit) was also introduced to improve the unit's durability.[6]

In each of the seasons 1987 and 1988, there was a special 'one-make' race series, in the UK, called the Saab Turbo Mobil Challenge, sponsored by Saab Great Britain and Mobil. It was run by the BARC.

The eight-valve engines were phased out in 1989 and 1990, with the turbo versions having been removed in North American markets by the end of 1984; North American 900S models received the non-turbo 16-valve engine for 1986. A non-turbo 16-valve engine replaced the 8-valve FI unit in the 900i (900S in North America) as well, while the carbureted engines were dropped. In Europe the eight-valve Turbo dropped out with the 1989 model year, with the limited production 900 T8 Special built to celebrate this. 805 were built for Sweden, featuring Aero trim and equipment.[2] The 900i 16 arrived in Europe, with 128 PS (94 kW; 126 hp). Anti-lock brakes were introduced as well, and were standard on Turbo models. High-mounted rear brake lights appeared during 1988, and power of the catalyzed Turbo 16 Aero jumped from 160 to 175 PS (118 to 129 kW; 158 to 173 hp).[2]

Larger pinion bearings were fitted to manual gearboxes for 1989 to improve their strength and reliability. For 1990 eight-valve engine were taken out of production while a low pressure turbo engine with 145 PS (107 kW; 143 hp) was available in European markets. ABS brakes and driver's side airbags were standardized for all North American market cars beginning with the 1990 model year. In the spring of 1990 the naturally aspirated 900i 16 Cabriolet was added.[2]

A 2.1 L (2119 cc/129 in³) (B212) engine was introduced for 1991. This engine was available in the United States until the end of the original 900, but in most of Europe, this engine was replaced a year later with the earlier B202 because of tax regulations in many European countries for engines with a displacement of more than 2000 cc. Front seats from the 9000 were standard from 1991 on and electronically adjustable ones were available as an option. Airbags became available as an option in Europe as well, while there was also an Aero version of the Cabriolet. The Saab 900 no longer offered the mesh wheels. There was also a change in the door locks, which carried over to the 900NG.

For 1992 there were mostly equipment adjustments, with ABS brakes finding their way into most of the lineup everywhere.[2] 1993 brought no changes, and "classic" 900 production ended on 26 March 1993, with a new GM2900 platform-based 900 entering production shortly afterwards. The final classic convertibles were still sold as 1994 models, with the Special Edition commanding top dollar in the resale market even today.

In all, 908,817 Saab 900s were built, including 48,888 convertibles.

### Convertible

In the mid-1980s, the president of Saab-Scania of America, Robert J. Sinclair, suggested a convertible version to increase sales. The first prototype was built by ASC, American Sunroof Company (now American Specialty Cars). Similarly, Lynx Motors International Ltd produced two "convertible" models, just prior to the official 1986 launch.

The Trollhättan design department, headed by Björn Envall, based its version on the 3-door hatchback while the Finnish plant used the sturdier 2-door version, which also looked better and was therefore selected for production. The initial production was not planned to be large but the orders kept coming in and a classic was born.

The new car was shown for the first time at the Frankfurt Motor Show (IAA) in the autumn of 1983. The first prototype aroused enormous interest and in April 1984, Saab decided to put the car in production at Valmet Automotive in Finland. The production of the first 900 convertible started during the spring of 1986.

The convertible usually had a 16-valve turbocharged engine, some with intercooler, but it was also offered in certain markets with a fuel-injected 2.1 L naturally aspirated engine from 1991 on.

Influenced by General Motors (GM), in 1994 the New Generation (NG) 900 SE, based on the Opel Vectra chassis, was introduced. While this design contained styling cues reminiscent of the *classic* 900, the GM 900 was fundamentally a different car. For many fans of the marque, the GM 900 marked the end of Saab's technology-driven design philosophy and, in their view, the beginning of the dilution of the Saab brand.

The cabriolet/convertible, however, was made on the 'classic' chassis for an additional year. This model is affectionately known as "The Goose", as, in some markets, the emblem on the back of the *SE* version reads "Saab 900 SE", which looks a bit like "GOOSE".

In US and Canadian markets, commemorative versions were produced for 1994 featuring special charcoal metallic "Nova Black" paint, a wood dash, black leather piping on the seats and higher-performing engines.

### Engine Development

Saab introduced a turbocharger in 1978 in its 99 Turbo with the B engine (based on the Triumph Slant-4 engine). This engine was also used in early 900 Turbo models.

For 1981 the B-engine was re-designed as the H engine, which was used through to 1993 (and 1994 cabriolets). Unlike the earlier version, the H-engine is very durable.[7] Saab used Bosch-made mechanical K-Jetronic continuous fuel injection in the fuel injected and 8-valve turbocharged versions, and the Bosch LH 2.2, 2.4 and 2.4.2 and Lucas Automotive electronic fuel injection systems were used in the 16-valve versions. The 2.1 L inline-four 16-valve engine used the Bosch LH 2.4.2 EZK electronic ignition system with knock sensor. 1981 was also the first year that the Turbo was available with an automatic transmission. The four-speed manual option disappeared after this year.[7]

What set the 900 Turbo apart from its turbo-equipped competitors, especially in the early- and mid-1980s, was the development and use of the *Automatic Performance Control* (APC) boost controller from 1982. The system allowed the engine to run at the limits of engine knocking. The system had a knock sensor attached to the intake side of the motor block and if knocking of any kind was present, the APC-system would decrease the charge pressure by opening a wastegate, a bypass to the exhaust. This enabled the use of various octane fuels and also made the use of the turbocharger safer for the engine. Some 900 Aeros, Carlssons and Commemorative Editions had special APC controllers in red and black enclosures (so-called "redbox" APCs) that provided more boost and increased power to 175 hp (130 kW) or 185 hp (138 kW) without a catalytic converter.

At first, Saab used a Garrett turbocharger (T3), which was oil-cooled. From 1988 through 1990, water-cooled T3s were fitted. In 1990, Saab fitted Mitsubishi TE-05 turbochargers in the SPG models only for the USA; for other countries, and for the US from 1991, all 900 Turbos were fitted with the TE-05. Also water-cooled, the TE-05 was slightly smaller than the Garrett T3s, providing improved throttle response and quicker spool-up. The TE-05's exhaust inlet flange utilizes a Garrett T3 pattern.

## SAAB 900 NG

### Assembly

Sweden: Trollhättan (Trollhättan Assembly)Finland: Uusikaupunki (Convertible) (Valmet Automotive)

## Body and chassis

### Class

Entry-level luxury car / Compact executive car

### Body Style

2-door convertible3-door hatchback5-door hatchback

### Layout

Transverse front-engine, front-wheel drive

## Dimensions

### Height

56.5 in (1,435 mm)1997-98 Hatchback: 56.6 in (1,438 mm)

## Chronology

### Successor

SAAB 9-3

The second or 'new' generation Saab 900 (also referred to as the *GM900* or *NG900* among enthusiasts) was built on GM's GM2900 platform as a replacement for the "classic" first-generation Saab 900. This all-new 900 was produced in 1994 through 1998 model years. In mid-1998 it received over 1100 individual improvements (although some were actually introduced on the 1998 model 900) and was renamed the Saab 9-3 (in most markets; in the US the name change was introduced for 1999). Like the 9-3, the NG900 was produced through 2002.

### Variants

Variants included 900i (4-cylinder, non-turbo), S (4-cylinder, non-turbo) and SE (4-cylinder turbo or V6) models in three-door, five-door and convertible body styles. For 1997 and 1998 only, there was also a Saab 900 Talladega, after a record-breaking endurance test in 1996, on the Talladega Superspeedway.

Depending on the market, the NG900 was available with a choice of 2.0 L or 2.3 L Saab 16-valve DOHC engines (Saab engine codes B204 and B234) in naturally aspirated or turbocharged form (2.0 L only), as well as a 2.5 L version of GM's European 54° V6 engine. Engine management for the turbos was by Saab Trionic 5 with Direct Ignition (SDI) and Automatic Performance Control, and for non-turbos by Bosch Motronic fuel injection. A distributor-operated ignition system was provided for naturally aspirated engines in some markets.

In contrast to the 'classic' Saab 900 with its longitudinally mounted engine and front-hinged hood (bonnet), the NG900 had a more-common transversely mounted engine with rear-hinged hood (bonnet).