During the MOT inspection, the Peugeot 307 frequently encounters failure points such as worn steering ball joints, defective lighting, insufficient tyre tread, exhaust leaks, and faulty windscreen wipers. These issues are not exceptional; rather, they are common reasons why the car fails the periodic inspection. Do you recognise these points in time? If so, you will save yourself disappointment at the test centre.
Why the Peugeot 307 fails the MOT more often
The Peugeot 307 is a popular model from the years 2001 to 2008. Due to the age of these cars, normal wear and tear is becoming increasingly apparent. In particular, components in the chassis, lighting, and tyres frequently show deficiencies that lead to immediate failure during the inspection. Owners report that these points recur in combination with rust on load-bearing parts and malfunctions in the braking system.
Most failure points can be traced back to wear and tear that is inevitable in older cars. Nevertheless, you can prevent many problems by carrying out a thorough check prior to the MOT. Certain components such as lights and tyres are easy to inspect yourself, while other points, such as steering play and exhaust leaks, require professional assessment.
‘ Do not ignore this problem, as play in the chassis directly affects driving safety. ’
Steering ball joints and chassis play in the Peugeot 307
Play in the steering system is a common MOT failure point for the Peugeot 307. Steering ball joints, wishbones, and other suspension components wear out over time and mileage. If the steering no longer feels tight or you hear knocking noises when steering, it is a sign that there is play in the chassis.
The MOT inspector checks this point by moving the wheels in different directions. If noticeable play is found, it will result in failure. This applies not only to steering ball joints but also to other parts such as stabiliser links and wheel suspension. Do not ignore this problem, as play in the chassis directly affects driving safety.
Identification and solution
You can often detect play yourself by shaking the front wheel while the car is on the ground. If you feel movement that shouldn’t exist, a visit to the garage is advisable. Replacing steering ball joints and wishbones is a standard repair, but putting it off leads to greater damage and higher costs.
Defective lighting causes immediate failure
Parking lights, tail lights, brake lights, and indicators must all function correctly during the MOT inspection. Defective bulbs are common in the Peugeot 307, especially with the parking lights and rear light units. Damaged light lenses or cracked reflectors also lead to failure.
The cause often lies in aged electrical contacts or burnt-out bulbs. Therefore, check beforehand that all lighting works and replace defective bulbs. Also, pay attention to the fog lights and the number plate lighting, as these are also assessed.
Practical check beforehand
- Turn on the lights and walk around the car to check all bulbs.
- Also test the brake lights and indicators by asking someone to press the pedals.
- Replace bulbs immediately if they do not light up or if they flicker.
- Check that light lenses are clean and undamaged.
Tyre tread and condition often below par
Tyres must have a minimum tread of 1.6 millimetres across the entire width of the tread pattern. On the Peugeot 307, tyres are regularly failed for insufficient tread, cracks in the rubber, or drying out. Especially in cars that are driven little or left standing for long periods, the rubber can harden and show cracks.
Check not only the depth of the tread but also the sides of the tyres. Dry cracks and irregular wear are signs that replacement is needed. A simple tread depth gauge costs just a few pounds and quickly provides clarity.
Tyre pressure and maintenance
The correct tyre pressure varies per version of the Peugeot 307, but is usually between 2.0 and 2.3 bar for the front wheels and 2.2 to 2.5 bar for the rear wheels under normal load. You can find the specific values on a sticker in the door frame or in the owner’s manual. Under-inflation accelerates wear and increases fuel consumption.
‘ “A leak in the exhaust not only causes noise nuisance but can also lead to failure if the system is no longer properly secured or if dangerous exhaust gases are leaking.” ’
Exhaust leaks and rust on the exhaust system
The exhaust system of the Peugeot 307 is prone to rust and leaks, especially in cars that do many short trips or are parked in a damp environment. A leak in the exhaust not only causes noise nuisance but can also lead to failure if the system is no longer properly secured or if dangerous exhaust gases are leaking.
Check beforehand if you hear an abnormal sound when starting or accelerating. A hissing or rattling sound indicates a leak. Look under the car for rust spots, loose mountings, or holes in the exhaust pipe and silencer. When in doubt, a garage can quickly assess this point.
Windscreen wipers and washers under the microscope
Windscreen wipers must effectively clear the windscreen without streaking or noise. During the MOT, it is assessed whether the wipers move smoothly and whether the view is not obstructed by wear of the rubber. The windscreen washers must also function and spray sufficient fluid onto the windscreen.
Worn wiper blades are simple and cheap to replace. Also, check that the washer jets are not blocked and that the fluid reservoir is sufficiently filled. These are small details that are easily overlooked, but can lead to failure.
Rust on load-bearing parts and bodywork
Rust is only an MOT failure point if it concerns load-bearing parts of the bodywork or chassis. For the Peugeot 307, the wheel arches, subframe mounting points, and the bottom of the doors are especially eligible for extra inspection. Surface rust on non-load-bearing parts does not lead to failure, but structural rusting does.
Look under the car and in the wheel arches for serious rust formation. If you are in doubt about whether the rust has gone too far, have a technician assess whether reinforcement or repair is necessary before you go for the MOT.
‘ This can lead to failure if the system is not functioning correctly. ’
ABS malfunctions and checking brakes
The braking system and the operation of the ABS are extensively tested during the inspection. In the Peugeot 307, malfunctions are sometimes reported where the ABS light stays on or the system intervenes unnecessarily. This can lead to failure if the system is not functioning correctly.
Test beforehand if the ABS light goes out after starting the car. If the light stays on or flashes, a diagnosis at a garage is necessary. The braking force and braking effect are also measured, so ensure the brake pads and discs have sufficient thickness.
Checklist for the Peugeot 307 prior to the MOT
With a systematic check, you can prevent many failure points. Go through these points a week before the inspection:
- Check all lighting for operation and damage.
- Measure the tyre tread and inspect the tyres for cracks.
- Test the windscreen wipers and top up the washer fluid.
- Listen for abnormal sounds from the exhaust.
- Shake the front wheels to detect play in the chassis.
- Look under the car for rust on load-bearing parts.
- Check if the ABS light goes out after starting.
- Test if seatbelts roll up and lock correctly.
MOT problems by year for the Peugeot 307
The Peugeot 307 from the early years, 2001 to 2004, shows more frequent problems with rust and electrical malfunctions. Later years from 2005 to 2008 have chassis play and exhaust leaks as the main causes. Cars from 2007 and 2008 sometimes also show ABS-related failure points, especially if the sensors have become dirty or defective.
This means that with an older 307, you must pay extra attention to the bodywork and electrical components, whereas with younger examples, the chassis and exhaust system take priority. Knowledge of these patterns helps with targeted preparation for the inspection.
‘ “Whether you are looking for information about engine problems, electrical malfunctions, or maintenance intervals, there is always more to discover.” ’
More information about the Peugeot 307 on Carnews
On the Carnews website, you will find comprehensive articles about common problems, maintenance tips, and practical guides for the Peugeot 307 and many other models. Whether you are looking for information about engine problems, electrical malfunctions, or maintenance intervals, there is always more to discover. View our other articles and increase your knowledge about your car.
Frequently asked questions
The most common failure points for a Peugeot 307 during the MOT are wear or play in steering and chassis components (such as steering ball joints and wishbones) and problems with the brakes and the ABS system. Defective or improperly functioning lighting, particularly parking lights, often lead to failure. In addition, tyres are regularly failed due to insufficient tread, cracks, or drying out. Finally, rust on load-bearing parts of the chassis can be a significant failure point.
Signs of wear in the wheel suspension of a Peugeot 307 that can lead to MOT failure include noticeable play in steering ball joints, wishbones, or other suspension parts, causing the car to steer imprecisely. Rattling or ticking noises when going over bumps or steering can also indicate excessive play or worn rubber bushes. Uneven or irregularly worn tyres often point to incorrect alignment or suspension play and, in severe cases, can also lead to failure. Additionally, with more advanced problems, the ESP/ABS system may intervene unnecessarily or show a warning light, which, in combination with demonstrable chassis problems, can lead to failure.
Yes, the ABS system and associated sensors, in particular, require extra attention because ABS malfunctions are a known MOT failure point for the Peugeot 307. Also, check the condition of the brake discs and pads for excessive wear or uneven contact. Pay attention to rust or damage to brake pipes and flexible brake hoses. A test drive to feel if there are vibrations, pulling to one side, or a pulsing brake pedal helps to identify problems beforehand.
Check that all lighting works (front, rear, brake, and parking lights) and replace any blown bulbs. Inspect the tyres for sufficient tread, small cracks, and signs of drying out, and correct tyre pressure if necessary. Test that the ABS warning light does not remain on and that the handbrake and service brakes feel normal. Finally, check windows, mirrors, and wipers for damage and proper function, and ensure that seatbelts roll up and lock correctly.
Check the chassis parts, sills, subframe, and suspension points at least once a year by jacking up the car and using a torch to look into wheel arches and along the underside. Tap any suspicious areas with a screwdriver to detect soft or rusted-through sections. Remove surface rust early with a wire brush or sandpaper, treat it with a rust converter, and apply paint or anti-rust wax (Cavity wax/Tectyl) to prevent further deterioration. If in doubt about the structural integrity of load-bearing parts, have a garage perform an inspection on a lift and (if necessary) a welding repair before the MOT. Repeat this check especially after winter, as road salt can significantly accelerate rust formation on load-bearing parts of a Peugeot 307.