Approximately 1350-1500 kg, depending on engine and equipment.
đĄïž Safety Features
Ratings
Crash Test Data:
Limited availability of specific crash test data from official sources for this era; general structural integrity typical of European cars of the late 70s/early 80s.
Active Features
Braking System:
Front ventilated discs, rear solid discs, brake booster, often with load-sensing proportioning valve.
Passive Features
Seatbelts:
Standard seatbelts, potentially with pre-tensioners on later models.
đĄ Technology Features
Infotainment
Audio System:
Factory-fitted radios, often with cassette players; optional upgraded sound systems.
Driver Assistance
ABS:
Optional Anti-lock Braking System (ABS) available on later models, particularly Senator.
Connectivity
No Modern Connectivity:
No integrated digital connectivity features like Bluetooth or USB; aftermarket solutions available.
đ§ Maintenance
Service Intervals
Oil Change Interval:
Typically every 10,000-15,000 km or 12 months, depending on driving conditions and oil used.
Air Filter Replacement:
Every 20,000-30,000 km or as needed based on driving environment.
Spark Plug Replacement:
Every 30,000-50,000 km, depending on plug type.
Fluid Specifications
Engine Oil Type:
API SF/SG or ACEA A2/B2 specifications; viscosity typically 10W-40 or 15W-40, depending on climate. Manual specifies specific oils.
Coolant Type:
Ethylene glycol-based antifreeze, typically a 50/50 mix with distilled water. Specific Opel or equivalent coolant required.
Transmission Fluid Manual:
GL-4 gear oil, e.g., 75W-90 or 80W-90.
Transmission Fluid Automatic:
Dexron II or equivalent ATF (Automatic Transmission Fluid).
Brake Fluid Type:
DOT 3 or DOT 4 brake fluid.
Known Issues
Common Problems:
Rust (especially in wheel arches, sills, and around windows), electrical gremlins (corroded connections), worn suspension bushings, fuel injection system issues (older injection systems can be sensitive), carburetor tuning, exhaust system leaks.
đ Vehicle History
Brand Heritage
Opel Evolution:
Opel's long history of building robust and reliable vehicles, moving towards more premium segments in the late 70s and 80s.
Model Evolution
Monza Development:
Developed as a large, sporty hatchback coupe based on the Senator/Rekord platform, targeting a more style-conscious buyer.
Senator Development:
Launched as Opel's flagship luxury sedan, emphasizing comfort, space, and smooth performance.
Production
Manufacturing Location:
RĂŒsselsheim am Main, Germany.
Facelifts:
Both models received facelifts (e.g., Senator A2 in 1982) with revised styling, improved interiors, and updated engines.
đ Awards & Recognition
Recognitions
Model Acknowledgments:
Recognized for their comfortable ride, powerful engines, and German build quality of the era. Senator was considered a strong competitor in the executive segment.