Common Problems with the
2008–2016 Ford Ka Mk2 (B420)

We've identified 3 known issues that can affect the 2008–2016 Ford Ka Mk2 (B420). 2 of these are serious faults that could be expensive to repair.

3
Known Issues
2
Serious
1
Moderate
0
Minor

All Known Issues

Rear Axle and Sill Corrosion

SeriousBodywork & Rust

Despite being newer than the Mk1, the Ka Mk2 can still rust badly around the rear axle, inner sills and wheel-arch seams, and structural repairs quickly outweigh the value of a cheap car.

Most affected: Studio, Style, Zetec

Estimated cost: £250–£1,200Affects: 20082016Often appears around: Age-related

Typical symptoms

  • Rusty rear axle beam
  • Bubbling around rear arches
  • Repeated MOT corrosion advisories

What to inspect before you buy

  • Inspect the rear axle and spring seats from underneath
  • Check inner and outer sills
  • Read the MOT history for recurring corrosion notes

Electric Power Steering Column Failure

SeriousSteering

The column-mounted electric steering can lose assistance intermittently or permanently, often after low-voltage events or torque-sensor wear.

Most affected: All models

Estimated cost: £250–£600Affects: 20082016Often appears around: 40,000-90,000 miles

Typical symptoms

  • Heavy steering at parking speed
  • EPS warning light
  • Assistance returns after restarting the engine

What to inspect before you buy

  • Drive the car from cold and hot at low speed
  • Check charging voltage and battery age
  • Look for replacement-column history

Heater Blower Resistor and Tailgate Wiring Faults

ModerateElectrics & Electronics

Ageing blower resistors and broken wiring at the tailgate can leave the Ka with missing fan speeds, dead rear electrics or damp-related gremlins.

Most affected: All models

Estimated cost: £80–£250Affects: 20082016

Typical symptoms

  • Heater fan only works on one speed
  • Boot release or rear wiper faults
  • Intermittent warning lights after rain

What to inspect before you buy

  • Cycle the fan through every setting
  • Operate the boot release and rear wiper repeatedly
  • Check the boot floor and carpet edges for moisture

Buying Tips for the 2008 Ford Ka Mk2 (B420)

  • Inspect the rear axle, sills and inner arches carefully because rusty Mk2 Kas can look smarter on top than they are underneath.
  • The electric steering must feel light and consistent from cold; intermittent heaviness is rarely just a weak battery.
  • Run the heater fan through every speed and check the boot floor for damp, because blower-resistor and tailgate-wiring issues are common age-related faults.

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