Question 1

What does fault code B1318 mean on my car?

Accepted Answer

B1318 means the airbag control module (SRS module) is detecting a lower voltage on its supply circuit than it needs to operate reliably. This could be caused by a weak battery, a failing alternator, a corroded earth strap, or damaged wiring between the battery and the SRS module — not necessarily a faulty airbag module itself.

Question 2

Is it safe to drive with a B1318 airbag fault code?

Accepted Answer

Technically your car will still drive, but with B1318 active your airbag system may not deploy correctly in a crash. You should treat it as urgent, especially before any long journey or motorway driving. Get it diagnosed promptly.

Question 3

Will I need a new airbag module to fix B1318?

Accepted Answer

In most cases, no. B1318 is a voltage supply fault, so the module is usually reacting to low power — not failing itself. Replacing the module without diagnosing the root cause wastes money and rarely fixes the problem. MnF Motors always tests the battery, alternator, earth paths and wiring first.

Question 4

How much does B1318 diagnosis and repair cost in Cheshunt?

Accepted Answer

A full electrical diagnostic at MnF Motors starts from £65. Depending on what we find — battery, alternator, earth strap or wiring — repair costs vary. We give you a clear written quote before any work begins, so there are no surprises. Call 020 8803 1231 to discuss your specific vehicle.

Question 5

How far is MnF Motors from Cheshunt?

Accepted Answer

MnF Motors is located at Unit 13 Shaftesbury Road, Edmonton, N18 1SW — approximately 7–9 miles south of Cheshunt via the A10. Most Cheshunt customers reach us in 20–30 minutes depending on traffic. We serve the whole of Cheshunt and surrounding EN7, EN8 and EN10 postcodes.