Common problems
R107 Won’t Start: My Troubleshooting Checklist
A calm R107 no-start checklist — split the problem before you throw parts.
Guide hub
Common problems guides – page 5
All guides
Common problems
R107 Central Locking Not Working (Vacuum Pump System)
When R107 locks go soft — how the vacuum pump system works and how I hunt leaks.
Common problems
R107 Overload Protection (OVP) Relay: Location, Symptoms, Fix
The OVP relay causes weird R107 electrical symptoms — where it lives, what it feels like, and how to test.
Common problems
Where Does an R107 Rust? A Complete Rust Check
A spot-by-spot R107 rust inspection checklist — the places I look first and how I decide if a car is worth saving.
Common problems
R107 Power Antenna Not Working
Power antennas fail by mast, motor, relay, or gunk. Cleaning and correct mast kits fix many dead-antenna complaints without a dash teardown.…
Common problems
R107 Automatic Transmission: Problems, Fluid and Cruise Control
R107 automatic transmissions are tough when fluid, vacuum, and linkages are right. Most “transmission is dying” stories I hear start as vacuum…
Common problems
R107 Dashboard Warning Lights Explained
Dash indicators exist to interrupt your day before the engine does. Know what each light and gauge is asking — and confirm…
Common problems
R107 Fuse Box Location and Fuse Chart
Where the R107 fuse box lives and how corrosion on old-style fuses creates ghost electrical problems.
Common problems
R107 Fuel Pump Relay Location (by Year)
Where the R107 fuel pump relay lives and how I test it when the car cranks but will not fire.
Common problems
R107 Bulkhead Rust: Signs, Check and Repair Cost
Bulkhead rust is the R107 deal-killer I care about most — how to spot it and what repairs really involve.