Ford Focus Mk3 1.0 EcoBoost 125bhp — Electric Window Regulator Cable Failure
The cables inside the electric window regulator mechanism fray and snap, causing the window glass to drop into the door frame.
Severity
MinorDIY Difficulty
Moderate
Est. Cost
£100–£200
OBD Codes
None
Symptoms
- Grinding or crunching noise when operating the window switch
- Window glass drops down into the door and won't come up
- Window sits crooked in the frame
Root Cause
The steel cables run over plastic pulleys. The plastic pulleys degrade and crack, or the cable frays and tangles inside the motor drum.
How To Fix
- Remove the interior door card to access the regulator.
- Tape the window glass 'up' temporarily to secure the vehicle.
- Replace the entire window regulator mechanism (usually supplied without the motor).
- Cost: £100-200
Estimated Repair Costs
| Repair Option | Est. Cost (GBP) |
|---|---|
| DIY (parts only) | £40–£80 |
| Independent Garage | £100–£200 |
| Main Dealership | £160–£320 |
Other Faults on This Variant
Timing Chain Stretch and Tensioner Failure
CriticalThe Focus Mk3 1.0 EcoBoost shares the same timing chain vulnerability as the Fiesta Mk7. Pre-2016 engines are the highest risk — chain rattle on cold start must be investigated immediately.
Coolant Loss from Integrated Exhaust Manifold
SevereThe 1.0 EcoBoost's unique integrated exhaust manifold/cylinder head design causes head gasket stress. Coolant loss without visible leaks is a known issue on higher-mileage Focus Mk3 examples.
Turbocharger Boost Leak from Intercooler Pipe
ModerateBoost pressure leaks from the plastic intercooler pipes and clamp connections on the 1.0 EcoBoost are common. A leak causes a noticeable flat spot and loss of performance under boost.
Disclaimer: Repair cost estimates are indicative and based on community data. Always get a quote from a qualified mechanic before proceeding with any repair.