Question 1

Will my car automatically fail its MOT if the engine management light is on?

Accepted Answer

Yes. Since May 2018, a car with an illuminated engine management light (EML) receives an automatic MOT failure under the 'major' defect category. The tester does not need to diagnose the fault — the light being on is enough to fail the vehicle.

Question 2

How much does a car diagnostic cost in Ilford?

Accepted Answer

At MnF Motors we charge a straightforward diagnostic fee to connect our professional-grade equipment, read all fault codes across every control module and provide a written report. If you proceed with the repair, the diagnostic cost is typically absorbed into the overall job price. Call 020 8803 1231 for a current quote.

Question 3

Can I drive from Ilford to MnF Motors with the engine management light on?

Accepted Answer

It depends on how the light is behaving. A steady EML with no other symptoms is usually safe to drive short distances. A flashing EML means a misfire is actively damaging your catalytic converter — you should stop as soon as it is safe and arrange recovery. If in doubt, call us on 020 8803 1231 and describe exactly what you are seeing.

Question 4

How long does it take to fix an engine management light fault?

Accepted Answer

Simple faults — a faulty sensor, a loose connector, a minor software update — can often be diagnosed and resolved the same day. More involved work such as catalytic converter replacement or injector repair may require parts to be ordered. We will give you a realistic timescale before we start and keep you updated throughout.

Question 5

Do MnF Motors offer a warranty on engine management light repairs?

Accepted Answer

Yes. All parts and labour carried out at MnF Motors are covered by our standard repair warranty. If an issue recurs within the warranty period, we will investigate and rectify it at no extra charge. You can review our full terms on our Warranty Claims page.