The MOT Files

Known faults, from the test record

Citroen C4 Picasso common problems

What fails on the Citroen C4 Picasso at MOT, which parts are behind it, and how each model year compares. From 6,844 DVSA test records.

Data updated

Quick answer

The Citroen C4 Picasso's most common MOT problems are suspension bushes, tyres, bulbs and lamps, recorded in 35.6%, 31.7% and 21.1% of failed tests respectively. By model year, 2018 cars pass most often (76.7%) and 2016 cars least (69.8%), though most of that gap is age. Every figure here is what testers recorded, not what owners reported.

A “common problems” list is usually a forum thread: whoever had the worst day writes the longest post. This one is built the other way, from every Citroen C4 Picasso that took an MOT last year and what the tester wrote down. It cannot see breakdowns, electrical gremlins or a gearbox that hunts, because the test does not check those. What it can see, it sees across 6,844 cars.

By component

What wears out on a C4 Picasso

Failure items grouped by the part behind them, with the share of failed Citroen C4 Picasso tests recording each. A part can carry several DVSA wordings; they are listed beneath. One failed test often lists several items, so shares do not sum to 100%.

  1. 1.Suspension bushes

    35.6% of failed tests

    Rubber bushes in arms and links perish and split with age and load; the most recorded suspension item on the test.

    • “A suspension pin, bush or joint excessively worn” — explained9.6%
    • “A suspension joint dust cover missing or no longer prevents the ingress of dirt etc” — explained7.8%
    • “A suspension pin, bush or joint excessively worn” — explained5.9%
    • “A suspension pin, bush or joint excessively worn” — explained4.8%

    Across all cars, suspension bushes failures climb 20-fold between three and fifteen years, peaking at 15+ years. How long suspension bushes last

  2. 2.Tyres

    31.7% of failed tests

    Tread wears with every mile and sidewalls age and take kerb damage; the legal minimum is 1.6 mm across the central three-quarters.

    • “Tyre tread depth not in accordance with the requirements” — explained12.0%
    • “A tyre cords visible or damaged” — explained8.9%
    • “A tyre seriously damaged” — explained7.1%
    • “A tyre seriously damaged” — explained2.4%

    Across all cars, tyres failures run at a similar rate at every age, because they are replaced on a cycle rather than wearing out with the car. How long tyres last

  3. 3.Bulbs and lamps

    21.1% of failed tests

    Filament bulbs simply expire; the cheapest and most avoidable failure on the test, and one of the most recorded.

    • “A rear registration plate lamp or light source missing or inoperative in the case of a single lamp or all lamps” — explained7.3%
    • “A headlamp or light source missing, inoperative or more than ½ not functioning in the case of LED” — explained5.8%
    • “A direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning” — explained3.7%
    • “A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning” — explained2.2%

    Across all cars, bulbs and lamps failures climb 15-fold between three and fifteen years, peaking at 15+ years. How long bulbs and lamps last

  4. 4.Driveshaft gaiters

    17.8% of failed tests

    The rubber boot over each CV joint splits with age and flexing, then throws grease and lets grit destroy the joint.

    • “A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc” — explained17.8%

    Across all cars, driveshaft gaiters failures climb 21-fold between three and fifteen years, peaking at 15+ years. How long driveshaft gaiters last

  5. 5.Brake pads and shoes

    14.1% of failed tests

    Friction material wears with use; the MOT limit is 1.5 mm and a pad that thin is close to metal on metal.

    • “a brake lining or pad worn below 1.5mm” — explained14.1%

    Across all cars, brake pads and shoes failures run at a similar rate at every age, because they are replaced on a cycle rather than wearing out with the car. How long brake pads and shoes last

  6. 6.Ball joints

    12.2% of failed tests

    Steering and suspension ball joints wear internally and their dust covers split; excessive play fails.

    • “A steering ball joint with excessive wear or free play” — explained10.8%
    • “A steering ball joint worn to the extent there is a serious risk of detachment” — explained1.4%

    Across all cars, ball joints failures climb 28-fold between three and fifteen years, peaking at 12–14 years. How long ball joints last

  7. 7.Wiper blades and washers

    11.9% of failed tests

    Rubber blades harden and split within a year or two; washer jets block and pumps fail.

    • “Windscreen washers not working or not providing sufficient fluid to clear the windscreen” — explained4.7%
    • “Wiper blade missing or obviously not clearing the windscreen” — explained3.0%
    • “Windscreen washers not working or not providing sufficient fluid to clear the windscreen” — explained2.5%
    • “Windscreen washers not working or not providing sufficient fluid to clear the windscreen” — explained1.7%

    Across all cars, wiper blades and washers failures run at a similar rate at every age, because they are replaced on a cycle rather than wearing out with the car. How long wiper blades and washers last

  8. 8.Headlamp aim

    10.3% of failed tests

    Aim drifts with sagging suspension, a knocked lamp or a botched bulb change; adjustment, not a part.

    • “The aim of a headlamp is not within limits laid down in the requirements” — explained3.8%
    • “The aim of a headlamp is not within limits laid down in the requirements” — explained3.5%
    • “Headlamp aim unable to be tested” — explained1.8%
    • “The aim of a headlamp is not within limits laid down in the requirements” — explained1.2%

By registration year

C4 Picasso problems by year

MOT pass rate for Citroen C4 Picasso cars by the year they were first registered, from years with at least 1,000 tests. Every car in a row is the same age, so the rate is raw. Neighbouring years differ by a year of wear — a step of a point or two is age. No single step here is large enough to point at a generation change.

201670%
201773%+3.5
201877%+3.4

Last column: change on the previous year, in points. Years registered within the last three years have not yet been tested and are not shown.

Before it fails

What testers warn C4 Picasso owners about

Advisories are the same parts a year or two earlier. Share of all Citroen C4 Picasso tests carrying an advisory for each.

Go deeper

The rest of the C4 Picasso file

Common questions

What are the most common problems with a Citroen C4 Picasso?
Going by what fails the MOT, suspension bushes (recorded in 35.6% of failed tests), tyres (recorded in 31.7% of failed tests), and bulbs and lamps (recorded in 21.1% of failed tests). These are the items testers actually record across 6,844 tests, not reports from owners, so they describe what goes wrong at the point where it has to be fixed.
Which Citroen C4 Picasso year is the most reliable?
By MOT pass rate, Citroen C4 Picasso cars registered in 2018 do best at 76.7% and 2016 cars do worst at 69.8%. Most of that ordering is simply age — newer cars pass more — so read the year table for steps larger than a couple of points between neighbouring years; those mark a change in the cars rather than the calendar.
Is the Citroen C4 Picasso reliable?
The Citroen C4 Picasso passes 71.1% of MOTs unadjusted; its fleet is too narrow in age or mileage for a fair national comparison. An MOT measures roadworthiness on the day rather than breakdowns or running costs, so this is a reliability measure in the narrow sense: how often the car meets the legal standard, and what stops it.
What should I check when buying a used Citroen C4 Picasso?
Start with what fails most: suspension bushes, tyres, bulbs and lamps. Then read the car's own MOT history for advisories carried year to year without repair — the model tells you what to expect, the history tells you whether this owner dealt with it.

Analysis built from DVSA data of