Ford Mondeo Mk3 (2000-2007) – Fuse Box and Relay Diagrams

Ford Mondeo Mk3 (2000-2007), the CD132 third-generation Mondeo, uses two main fuse and relay assemblies: an engine compartment box next to the battery and a central fuse carrier beneath the dashboard. The sedan, hatchback and estate share the same numbering ranges, but individual circuits depend on the engine, model year, headlamp type and optional equipment.

The June 2003 facelift retained the two basic carriers but changed several assignments. This guide contains all 113 entries in the five original source tables, plus a new two-row table for the optional F100 and F101 inline fuses, which were mentioned only in the article text. All 115 rows preserve relay positions, unoccupied slots, alternatives for petrol and TDDi/TDCi diesels, and the original figures.

Ford Mondeo Mk3 fuse box locations and access

Engine compartment: switch the ignition and electrical loads off, open the bonnet and locate the covered power distribution unit by the battery. Remove the battery trim shield if installed, release the fuse box lid clips and lift the cover to identify F1-F42, their related relays and three diode positions. These fuses protect ABS, fans, engine controls, lights, heating and starting. Follow the manufacturer’s electrical isolation procedure for high-current links.

Passenger compartment: look beneath the dashboard. On most left-hand-drive European models, release the small lower access panel on the driver’s side; right-hand-drive vehicles may use a panel behind the passenger glove compartment. The central fuse carrier contains F60-F99 with additional relays. Match the physical housing and original factory fuse card before removing any fuse, and refit the panel firmly.

Engine compartment fuse box – F1-F42

There are separate 30 A supplies for the heated windscreen: F11 for the left-hand section and F13 for the right-hand section, plus F15 (3 A) for the control circuit. F16 and F18 are 7.5 A on cars fitted with halogen dipped beams, but each can be 20 A with factory xenon units. The source table retains separate rows for these alternatives.

Engine bay relay positions

The 13 relays control starting, the horn, headlamps, PCM, radiator fans, air conditioning and selected diesel fuel and glow-plug systems. K341 and K380 serve certain diesel injection configurations; a petrol Mondeo need not have the same devices installed. Relay rows are marked “-” in the amp column because they are not ordinary replaceable blade fuses.

Passenger compartment fuse box – F60-F99

The main front cigarette lighter and 12 V socket are protected by F68 (15 A). Estates may have a separate rear power outlet on F70 (15 A). F99 is listed twice: 7.5 A for earlier interior light wiring and 10 A for a later facelift configuration. Do not install 10 A in a 7.5 A vehicle merely because it is listed in another row.

Passenger compartment relays

The interior assembly carries seven relay functions including heated rear window, ignition, front and rear wipers, high beam and the K115 Battery Saver energy-management relay. A failed Battery Saver circuit can interrupt multiple comfort functions even if their individual fuses remain intact.

Additional inline fuses – F100 and F101

On selected early models, F100 (7.5 A) can be located beneath the centre console to protect a multimedia module. F101 (3 A) is a separate supply for a CD changer below the front passenger seat. These do not occupy normal positions in the F60-F99 dashboard fuse carrier, and are not fitted to every car.

Before and after the June 2003 facelift

Some important differences depend on more precise build dates than the facelift itself. Ford’s workshop documentation confirms the auxiliary diesel heater F23 was 15 A before February 2003 and 20 A from February 2003. Other petrol and performance versions can use F23 at 7.5 A for the battery-backed alarm siren.

After the facelift, heated seat protection may be fitted at F5 (20 A), and changes to interior lighting include F99 moving from 7.5 A to 10 A. The original five-row comparison is kept separately so these version-specific changes are easy to inspect.

Ford Mondeo Mk3 – typical electrical faults

Front cigarette lighter has no power: check cabin F68 (15 A), then the socket itself for damaged insulation or an accessory short. Rear estate power outlet dead: check F70 (15 A) independently; it is not always tied to F68.

Heated front windscreen works on one side only: inspect engine F11 and F13 (30 A each) and control F15 (3 A), then the glass heater connection and relay K40. Diesel heater not warming the cabin: check the precise build date and the 15/20 A F23 supply, plus the separate auxiliary heater fuse where installed.

One dipped headlamp failed: check F16 for the left or F18 for the right, but use the correct 7.5 A halogen or 20 A factory xenon rating. Central locking or comfort lighting is intermittent: check the relevant GEM supply and K115 Battery Saver relay before assuming every fault is due to a blown fuse.

Engine starting or injection problems: engine fuses F9, F27, F29, F32 and the fitted PCM/fuel pump relays can be relevant, depending on petrol or TDCi wiring. Diagnostic fault codes are needed when the correct fuse and voltage supply are intact.

Other Ford diagrams with different electrical generations are available for the Ford Focus Mk2 facelift and the Ford Mondeo Mk4. Select the article for the exact model rather than transferring a similar-numbered fuse assignment.