Two cars, one bay, nine o'clock
At nine o'clock a car booked online arrives for its MOT. So does a car booked over the phone yesterday afternoon by a different member of staff, and a van that turned up expecting a while-you-wait test. There is one bay and one tester until ten.
Someone waits. The online customer is annoyed because the website confirmed nine o'clock. The phone customer is a regular and gets priority. The van driver leaves. By eleven the bay is back on schedule, but three customers have had a worse morning than they needed to.
Why MOT slots get double-booked
An MOT booking looks simple. It is a slot of a fixed length. But it depends on three things at once: a free bay, a bay that can take that vehicle class, and a tester on shift and available. Most website booking widgets only know about time. The phone diary knows about the tester. Nobody's diary knows about the retests due back that day.
Online, phone and walk-in bookings also tend to live in different places, and the person answering the phone cannot see what was booked online an hour ago.
Walk-ins add to the confusion. Many centres like to take them, because a car turned away at the door rarely comes back. But without a view of what is booked and what is held, taking a walk-in at nine can quietly push every booked customer after it later, and the effect only shows by the middle of the afternoon.
What double-booking costs the centre
| Problem | Result |
|---|---|
| Online and phone diaries separate | Two cars for one slot |
| Class not checked | A van booked into a bay that cannot take it |
| Tester availability ignored | Slots offered when nobody is on shift to test |
| No room for retests | Retests squeezed in, pushing the day late |
| Walk-ins taken without looking | Booked customers kept waiting |
A test bay is the one resource an MOT centre cannot stretch. Every clash wastes it, and every customer kept waiting is less likely to book again.
How we build booking against bays and testers
- Each test bay is set up with the vehicle classes it can test, and each tester with their shifts and the classes they are able to test.
- Slots are generated from those, so a slot is only offered when a suitable bay and a tester are both free.
- Online, phone and walk-in bookings all go into the same diary. Staff on the phone see what was booked online a minute ago.
- The customer enters their registration online, and the vehicle's details are looked up so the right class is booked.
- A number of slots each day, which you set, is held back for retests and while-you-wait customers.
- Confirmations and a reminder the day before go out by text or email, with a link to cancel or move the booking.
This sits alongside the MOT testing service rather than replacing it. The test itself is still recorded in the official system as usual. We handle the booking side before the car arrives.
Nine o'clock, one car
The phone booking made yesterday afternoon took the last nine o'clock slot for that bay, so the website did not offer it. The online customer booked half past nine instead. The van driver saw on the website that the class 7 bay had a slot at ten and booked it on the way.
The bay runs to time. The retest due back at eleven has its reserved slot. The walk-in who arrives at noon is offered the next real gap.
- Slots offered only when a bay and a tester are free
- One diary for online, phone and walk-in
- Vehicle class checked at booking
- Room held back for retests
Is your MOT diary causing clashes?
- Online and phone bookings are kept in different places.
- Two customers sometimes arrive for the same slot.
- Vans are booked into bays that cannot test them.
- Retests are squeezed into a full day.
- Your booking widget does not know who is on shift.