Peugeot 408 Wiring Harness

Full loom replacement is rare and expensive — UK dealer quotes around £800 to £900. AE Wiring in Port Elizabeth manufactures Peugeot harnesses locally. In practice we repair damaged sections with soldered splices and heatshrink rather than replace — request a free quote for a diagnosis.

On the 207, a leaking washer bottle or a failed coolant temp sensor can drip onto the ECU connector in the engine bay. Blocked bulkhead drains flood the footwell loom. Bonnet seal failure lets rain into the scuttle area. All are common SA complaints.

A chafed ABS wheel speed sensor loom is the most common cause we see — the wheel moves the wire, insulation wears through and the signal shorts. Intermittent because it only grounds when the loom flexes the right way. Inspect where the loom crosses the suspension arm.

Yes, and it should always be the first approach. A good auto-electrician solders, heatshrinks and re-sleeves damaged sections for a fraction of full-harness cost. Full replacement is only justified after fire damage or flooding that corrodes the entire loom.

Water is shorting a wire to earth somewhere in a wet section of loom. Common spots: under the battery tray, the bulkhead connector behind the airbox, and the boot loom rubber on hatchbacks. Trace the circuit the fuse protects, then inspect that loom for dampness.