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The Peugeot 604, produced from 1975 to 1986, dates back to a time when airbag systems were not yet common in production vehicles. Therefore, the original Peugeot 604 models typically do not have an airbag control unit, as they were delivered without airbags from the factory.
The Peugeot 604 was a prestigious luxury sedan that emphasized comfort and elegance and was produced from 1975 to 1985/1986. With its Pininfarina-designed design and the widely used "PRV V6" engine, it was intended as a direct competitor to German premium vehicles. During its ten-year production run, development focused on engines, chassis, and luxurious features—for example, with high-quality interior materials and a focus on the driving experience.
Passive safety systems such as airbags, which only became standard in the automotive industry much later, were neither standard nor optional at this time. The introduction of airbags as standard safety equipment in passenger cars only began in the late 1980s and intensified in the 1990s. The Peugeot 604 was thus built at a time when airbag technologies were still in their infancy or found only in experimental vehicles. Therefore, there is no need to repair an original airbag control unit for this model.
If an airbag system is present in a Peugeot 604, it is most likely a rare aftermarket installation that does not correspond to the original. Such custom-installed systems require special testing because they do not conform to the standard configurations.
The Peugeot 604 was not produced in distinct, separate generations during its production run from 1975 to 1986. Instead, there were continuous developments and model variants, reflecting the evolutionary nature of its safety systems—or, in this case, the lack thereof.
The Peugeot 604 was launched at the 1975 Geneva Motor Show and remained largely in its basic form throughout its lifespan. However, there were model names such as the 604 TI and 604 STI, which marked technical improvements, particularly in the engines (often the familiar PRV V6), and equipment details. These variants, however, did not change the basic safety features, as airbags were not included in any of these versions.
Even special body variants, such as the long-wheelbase version or the very rare Landaulet, offered by coachbuilder Heuliez, were based on the same technical platform. The focus was always on ride comfort and the prestigious appearance of the luxury sedan. The development of the safety system remained static with regard to airbags throughout the entire production period from 1975 to 1986.
Production ended after around 153,250 vehicles had been built, and the 604 was later replaced by the Peugeot 605, which was then developed in an era when airbags were gradually becoming standard.
Identifying an airbag control unit in a Peugeot 604 is generally not relevant, as this vehicle model was not equipped with airbag systems ex works. Vehicles produced between 1975 and 1986 did not have airbags, and therefore did not have the associated control units in the sense of today's passive safety systems.
If you still suspect components that you interpret as an "airbag control unit," it is crucial to carefully check the origin and function of these parts. This could be other electronic modules in the vehicle or, in the case of an extremely rare retrofit, a non-original system. For modern vehicles, an airbag control unit can be clearly identified by the part number, year of manufacture, and vehicle identification number (VIN). However, these criteria do not apply to the Peugeot 604 in the context of an original airbag system, as it simply did not exist.
The Peugeot 604 models were equipped with a variety of electronic components for engine control, comfort functions, and lighting, but no airbag module. Therefore, confusion with other control units, such as those for the ABS or ignition system, is possible. In the event of a vehicle system failure, it is advisable to consult a specialist familiar with the specific systems of the Peugeot 604 from this era to make a correct diagnosis and, if necessary, perform a repair that does not involve the airbag control unit.
The Peugeot 604, produced between 1975 and 1986, was not equipped with airbags as standard equipment. During its production period, airbags were not yet a standard or optional safety component in luxury vehicles.
The safety concept of the Peugeot 604 was based on the passive safety features common at the time, primarily realized through the body structure, seat belts, and a robust passenger cell. Airbag systems as standard today—from front and side airbags to curtain airbags—were not yet widespread in the 1970s and early 1980s. The primary passive safety elements of the 604 were the three-point seat belts on the front seats and the rigid passenger cell, which was designed to protect the occupants in the event of a collision.
The development of comprehensive airbag systems came much later. Models equipped with airbags only appeared in the second half of the 1980s and did not become widespread until the 1990s. The Peugeot 604 was designed as a comfortable and prestigious sedan, primarily focused on driving experience and travel comfort, without the advanced safety technologies that would only be developed in subsequent decades.
Therefore, it is important to understand that repair services for "Peugeot 604 airbag control units" are usually based on a misunderstanding or would refer to extremely rare, non-original retrofits that require individual assessment.