Car maintenance advice is everywhere — from forums and social media to well-meaning friends and family. Unfortunately, a lot of it is outdated, misunderstood, or simply wrong.
Believing the wrong advice doesn’t just create confusion — it often leads to unnecessary repairs, wasted money, and poor decisions.
Here are some of the most common car maintenance myths — and what actually matters instead.
Myth 1: “If It’s Not Broken, Don’t Touch It”
This sounds sensible, but it often leads to bigger problems later.
Some components are designed to be maintained before they fail, such as:
- Timing belts
- Brake components
- Fluids and filters
Ignoring preventative maintenance usually costs more than dealing with wear early.
Myth 2: “Main Dealer Servicing Is Always Better”
Dealer servicing isn’t inherently bad — but it isn’t always necessary.
What matters more than where a car is serviced is:
- Work being done on time
- Correct parts and fluids being used
- Evidence of consistent maintenance
A good independent garage can be just as effective — often at lower cost.
Myth 3: “Warning Lights Can Be Ignored If the Car Drives Fine”
This is one of the most expensive myths.
Many serious faults begin as minor warnings. Ignoring them can turn:
- Sensors into system failures
- Minor leaks into major repairs
- Simple fixes into breakdowns
If you’re unsure which lights actually matter, this maintenance guide explains it clearly:
➡️ What dashboard warning lights you should never ignore
Myth 4: “Short Trips Don’t Affect the Car”
Short journeys can be harder on cars than long ones.
Repeated short trips can cause:
- Battery drain
- DPF issues on diesels
- Increased engine wear
- Moisture build-up
Driving patterns matter just as much as mileage.
Myth 5: “Newer Cars Don’t Need Maintenance”
Modern cars are more reliable — but they’re also more complex.
Ignoring maintenance on newer cars can lead to:
- Expensive electronic faults
- Warranty issues
- Accelerated wear once problems start
Newer doesn’t mean maintenance-free.
Myth 6: “Passing the MOT Means the Car Is Healthy”
An MOT is a minimum safety check, not a health certificate.
A car can:
- Pass an MOT
- Still have advisories
- Still require upcoming maintenance
Understanding the difference between passing and being well-maintained saves money over time.
And when a fault does need proper attention, our guide to car repairs outlines what happens during the repair process and how to get your car sorted efficiently.
How Myths Lead to Poor Decisions
These myths often result in:
- Over-servicing in some areas
- Neglect in others
- Confusion around repair priorities
- Reactive spending instead of planning
Better information leads to calmer, cheaper decisions.
For more information on looking after your vehicle properly and helping it stay reliable, safe, and valuable, check out our maintenance guidance hub.
When Myths Start to Affect Bigger Choices
Maintenance myths often surface when drivers are deciding:
- Whether to keep a car longer
- Whether upcoming costs make sense
- How much more to invest
If you’re weighing those questions, understanding your car’s real position can help you decide without guesswork.
➡️ Get a clear picture of your car’s value and options:
The Key Takeaway
Good maintenance isn’t about doing everything — it’s about doing the right things at the right time.
Letting go of common myths helps you spend less, worry less, and make better long-term decisions.