Most driving-test faults are symptoms of late observation or weak planning rather than isolated technical mistakes. A missed mirror check, poor lane position or abrupt brake often begins several seconds earlier when the candidate approaches too quickly, looks too late or focuses on the examiner instead of the road.
The best preparation is not memorising a list of faults. It is practising the decisions behind them until safe observation, speed and position remain consistent on unfamiliar roads and without continuous prompts.
Prepare with Apollo School of Motoring and use our full guide to preparing for the practical driving test.
Last updated: 1st August 2026
The Fault-Prevention Priorities
- Observe early: information is only useful when there is still time to act.
- Control the approach: suitable speed creates time for mirrors, signs and judgement.
- Plan position: read markings and choose lanes before the final moment.
- Keep routines meaningful: mirror checks and signals must influence the decision.
- Recover calmly: do not let one imperfection create the next fault.
How the Test Is Marked
Examiners record driving faults, serious faults and dangerous faults. A driving fault is a mistake that is not potentially dangerous in the circumstances. Repeated faults in the same area can become serious if they show a pattern that affects safety.
A serious fault is potentially dangerous, while a dangerous fault involves actual danger to the candidate, examiner, public or property. The context matters: the same action can be assessed differently depending on traffic, visibility, control and the effect on others.
| Fault type | What it means | Effect on the result |
|---|---|---|
| Driving fault | A mistake that is not potentially dangerous in the circumstances. | A limited number can be recorded and the candidate may still pass. |
| Serious fault | A potentially dangerous error or repeated weakness that creates significant risk. | Results in a fail. |
| Dangerous fault | Actual danger is created for people, property or the vehicle. | Results in a fail. |
| Examiner intervention | The examiner may use controls, steering or verbal action to protect safety. | Usually indicates a serious or dangerous situation, judged in context. |
1. Observation at Junctions
Junction observation is a frequent source of faults because the learner may look but still fail to obtain enough information. A quick glance while the car is moving too fast does not provide a safe decision.
Approach speed should match the view. Closed junctions may require the vehicle to slow significantly or stop, then creep carefully to improve visibility without entering the path of traffic.
What Goes Wrong
- approach speed stays too high;
- the final check happens after the car has begun moving;
- the learner looks mainly in one direction;
- a gap is accepted because another driver is waiting behind.
Better Test Habit
- slow early enough to create thinking time;
- use repeated observation when the view is restricted;
- judge speed and distance, not only whether a vehicle is visible;
- wait for a safe gap without being pressured.
2. Mirrors Before Changing Speed or Direction
Mirror use should be connected to a decision. The candidate checks because traffic behind may be affected by braking, moving away, changing lane, turning or passing an obstruction.
Mechanical mirror performances can still fail to provide useful information. The check must happen at the right time, and the driver must respond to what is seen.
A Useful Mirror Question
Before changing speed or direction, ask: who could be affected behind or beside me, and do I need to adjust the plan?
3. Moving Off Safely
Moving away requires control and effective observation. Common problems include missing the blind spot, allowing the car to roll, moving into the path of traffic or focusing so heavily on the clutch that the road is no longer monitored.
Prepare the vehicle, observe around the car, identify a safe opportunity and move smoothly. If the opportunity disappears, remain secure and repeat the observation rather than forcing the move.
4. Responding to Signs, Markings and Traffic Signals
Test routes are not fixed scripts. Roadworks, temporary signs, lane changes and traffic conditions can alter the correct decision. Candidates must read the current road rather than rely on memory.
Look far enough ahead to identify speed limits, lane arrows, stop or give-way lines, bus lanes and directional signs. Late recognition often creates abrupt lane changes or braking.
Speed-limit signs
Confirm the new limit and adjust smoothly after the sign unless the lower limit requires earlier preparation.
Lane arrows
Choose the lane early and remain within it unless a safe change is necessary.
Traffic lights
Approach at a speed that allows a controlled stop if the signal changes.
Give-way and stop lines
Understand the different legal requirements and complete effective observation.
Bus lanes
Check the operating times and signs instead of avoiding every bus lane automatically.
Temporary signs
Treat roadworks and temporary restrictions as current instructions, even if the road is familiar.
5. Steering and Road Position
Position should create space, communicate intention and keep the vehicle within the correct lane. Faults can arise from cutting right turns, swinging wide on left turns, drifting on bends or travelling too close to parked vehicles.
Look where the vehicle needs to go and plan the line early. Steering should be smooth and controlled, with enough clearance for doors, cyclists and oncoming traffic.
| Situation | Common mistake | Safer approach |
|---|---|---|
| Parked vehicles | Passing too close or pulling out without mirrors. | Check behind, signal if useful and leave a safe door-width margin where possible. |
| Right turn | Cutting the corner into the wrong side. | Wait for the correct turning point and follow a controlled arc. |
| Left turn | Swinging out before turning. | Reduce speed and steer from a suitable position. |
| Multi-lane road | Drifting or changing lane late. | Read signs and markings early, then complete mirrors and blind-spot checks. |
| Bends | Speed stays high and steering becomes abrupt. | Set speed before the bend and look through the available view. |
6. Speed: Too Fast and Too Slow
The speed limit is a maximum, not a target in every condition. The driver must reduce speed for visibility, bends, pedestrians, parked vehicles, weather and traffic. Exceeding the limit or failing to notice a change can quickly become serious.
Unnecessary slowness can also affect progress and other road users. The candidate should make reasonable progress when the road is clear and conditions allow it.
Do Not Drive Artificially Slowly to Look Safe
Safety comes from matching speed to the situation. Driving at 20 mph on a clear 40 mph road without reason can create uncertainty and show weak judgement. Equally, reaching the limit is not appropriate when visibility or hazards require less.
7. Roundabout Planning
Roundabouts combine signs, lanes, speed, observation and signalling. Mistakes often begin before the give-way line because the approach was not planned early enough.
Read the sign and road markings, check mirrors, choose the correct position, reduce speed and identify a safe gap. On exit, maintain lane control, use the appropriate signal and check for cyclists or vehicles alongside.
Roundabout Decision Sequence
- Read: identify the intended exit, lane arrows and road signs.
- Prepare: mirrors, signal where needed, position and suitable speed.
- Observe: judge traffic from the right and any immediate hazards.
- Decide: enter only when the gap is safe for the vehicle and conditions.
- Exit: maintain lane, signal appropriately and monitor mirrors and vulnerable road users.
8. Meeting Traffic and Clearance
On roads with parked vehicles, the driver must decide who has the obstruction, whether there is enough width and where a safe waiting place exists. Rushing can trap both vehicles or force somebody else to brake.
Look well ahead, reduce speed and use gaps between parked vehicles strategically. Courtesy can help traffic flow, but do not wave another road user into a situation you cannot control.
9. Manoeuvres: Control and Observation
The manoeuvre is not judged only by the final parking position. The examiner also assesses control, observation and the response to other road users. A slow, safe correction is usually better than continuing an inaccurate line.
Keep the vehicle at a speed that allows observation and adjustment. Check all around before and during movement, and pause if a pedestrian, cyclist or vehicle enters the area.
A Correction Is Not Automatically a Failure
If the position can be improved safely, observe, secure the vehicle if necessary and correct it. The risk created by ignoring the problem is often greater than the fact that a correction was needed.
10. Following Directions and Taking a Wrong Turn
Taking the wrong route is not normally a fault by itself. The important point is to remain safe. A sudden lane change or turn made only to obey the instruction can create a serious problem.
If an instruction is unclear, ask the examiner to repeat it. If the safe route differs from the intended route, continue safely and allow the examiner to redirect.
11. Vehicle Control Problems
Stalling, selecting the wrong gear or braking harshly is assessed according to the situation and recovery. A stall in a quiet safe position is different from losing control while emerging into traffic.
When control is lost, secure the vehicle, breathe, complete the necessary observations and restart without rushing. The recovery often shows more about competence than the initial mistake.
12. Letting Nerves Create More Faults
Test anxiety can narrow attention and make normal decisions feel urgent. Candidates may stare at the examiner, interpret every note as failure or replay an earlier mistake instead of reading the road.
Use a simple reset: exhale, return attention to the current hazard and follow the normal routine. Further strategies are covered in how to stay calm during your driving test.
How to Use Mock Tests Properly
A mock test removes much of the coaching and shows whether performance remains consistent. It can reveal dependence on prompts, repeated observation gaps and how the learner responds after a mistake.
One mock should not be treated as a final verdict. Review the pattern across several drives and convert each weakness into a specific lesson objective. A broader preparation guide is available at preparing for your driving test.
| Area to score | Questions after the mock | Next action |
|---|---|---|
| Observation | Were final checks timely and effective? | Repeat the situations where information was gathered late. |
| Planning | Were signs, lanes and hazards identified early? | Use commentary or route planning to extend the view ahead. |
| Control | Did pressure create stalls, harsh braking or steering? | Practise the control task separately, then add traffic. |
| Independence | How often did the instructor need to prompt? | Repeat full sections with reduced support. |
| Recovery | Did one error affect the next situation? | Practise a deliberate reset routine. |
Test-Day Checklist
- bring the required licence and arrive with enough time to settle;
- use a suitable insured vehicle that meets the test requirements;
- adjust the seat, mirrors and controls before moving;
- listen to each instruction and ask for repetition when needed;
- continue normal observation even when talking to the examiner;
- accept that a small mistake may not have ended the test;
- choose safety over trying to follow a late instruction; and
- focus on one road situation at a time.
Understand Faults Without Obsessing Over Them
Learning the difference between driving, serious and dangerous faults helps candidates understand the standard, but trying to mark yourself during the test is distracting. The examiner judges context and effect, not only the name of the action.
For more detail, read driving test minors and majors.
Build the Habits Before Test Day
Apollo School of Motoring helps learners turn test requirements into normal driving habits through structured lessons, varied routes and honest feedback.
To discuss lesson availability and focused test preparation, use the online booking page. The goal is not to perform differently for forty minutes; it is to make safe routines so familiar that they remain reliable under assessment.
How to Turn a Fault List into Useful Practice
Take one recurring fault and trace it backwards. If the final issue is hesitation at a roundabout, check whether the learner arrived too fast, looked only to the right, misunderstood lane priorities or waited for a gap larger than necessary. Practise the cause, not only the final hesitation.
Fault
Describe the observable event without judgement: the final mirror was missed before moving right.
Cause
Identify what occupied attention or happened too late: the lane decision was made at the last moment.
New routine
Move the decision earlier: read the sign, check mirrors, choose the lane and then manage traffic.
Proof
Repeat the routine on different junctions without the instructor supplying the timing.
Do Not Drive for the Examiner
Exaggerated mirror movements, artificial slowness and unnecessary signals can create new problems. The examiner needs to see effective driving, not a performance of test routines. Check mirrors at the relevant decision point and act on the information.
If an instruction is missed, ask for it again or continue safely. A wrong turn is less important than a late unsafe correction.
Use Mock Tests to Find Patterns
One mock test cannot prove readiness. Use several, on varied routes, and review categories rather than counting only the total faults. Repeated late observations or instructor interventions matter more than one untidy manoeuvre that was corrected safely.
Between mocks, return to normal teaching. A mock identifies the problem; focused practice changes it.
Test-Day Recovery
After Any Mistake
Secure the current situation, restore observation and continue with the normal routine. Do not decide whether the fault was minor or serious while the car is moving. The examiner will assess the context and effect.
Final Readiness Evidence
- several independent drives without serious or dangerous mistakes;
- safe decisions on unfamiliar routes;
- consistent speed-limit recognition;
- effective observations before moving or changing direction;
- roundabout lane choice based on signs and markings;
- manoeuvres completed with control and all-round observation;
- ability to recover from a stall or wrong turn; and
- nerves managed without losing the basic routine.
Our guide to staying calm during the test explains how to keep these skills available under pressure.
Book focused test preparation online when recurring faults need structured practice.
Final Advice
Avoiding test faults is not about trying harder on the day. It is about moving observation and planning earlier during ordinary lessons. When the candidate has time to see, decide and act, mirrors, speed, position and control become parts of one safe process rather than separate items to remember.