Description
Factory Opel Senator Workshop Manual (1978–1993, A & B Generations)
The Senator was Opel’s large luxury saloon — two generations, long production run, and Germany’s answer to the BMW 5 Series and Mercedes W124. This factory workshop manual covers the complete 1978–1993 Senator lineage, including the Senator A (1978–1986) and Senator B (1987–1993).
Generation & Powertrain Coverage
| Generation | Engines |
|---|---|
| Senator A (1978–1986) | 2.0L, 2.2L, 2.5L, 3.0L CIH inline-6 petrol; 2.3L diesel |
| Senator B (1987–1993) | 2.5L, 3.0L CIH inline-6; 3.0L 24V DOHC high-performance variant |
| Transmissions | 4-speed manual, 5-speed manual, 3-speed auto, 4-speed auto |
| Drive | RWD |
| Model Years | 1978, 1979, …, 1992, 1993 |
Common Senator Repairs Covered
| System | Procedures |
|---|---|
| CIH Inline-6 | Camshaft-in-head (CIH) timing chain, valve adjustment, head gasket |
| 3.0 24V (Senator B) | DOHC 24-valve timing belt, variable intake manifold, fuel rail |
| Carb & EFI | Zenith/Pierburg carburettor (early), Bosch LE-Jetronic/Motronic (later) |
| Automatic | GM THM 3-speed (early), 4L30E 4-speed (later) |
| RWD Suspension | Independent rear suspension, Panhard rod (later), rear anti-roll bar |
What’s Inside the Manual
Factory Opel chapter set for both Senator generations: diagnosis and specifications, CIH and 24V DOHC engine service, carburettor and EFI (LE-Jetronic, Motronic) fuel systems, emission control, lubrication and mechanical, manual and automatic transmission, brake system (front/rear disc), independent rear suspension, steering (later power-assisted), HVAC, scheduled maintenance, lighting and switches, clutch, propeller shaft and rear differential, cooling system, complete electrical with wiring diagrams across both gens, suspension and alignment, wheels and tyres, body and chassis, interior trim.
Format & Delivery
Searchable digital manual. Instant download; lifetime re-downloads.
Frequently Asked Questions
What’s “CIH” on the Opel engines?
Camshaft-In-Head — Opel’s distinctive design where the cam sits high in the cylinder head but drives the valves via short rockers. Different from OHC and pushrod designs. Full service procedure included.
Does this cover the Senator B 3.0 24V?
Yes. The high-performance 3.0L 24V DOHC engine (204 hp) fitted to the Senator B flagship is fully covered with DOHC-specific timing and service.
Is the Senator related to the Monza coupé?
Yes. The Senator and Monza share the same platform and drivetrains. Much of this manual’s coverage applies to Monza service as well.
Are Senator parts still available?
Mechanical parts (CIH engine items, Bosch EFI components) available through German classic-Opel specialists. Body trim is harder but possible.
What format is the manual?
Searchable digital manual. Instant download.
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