You're standing in a driveway looking at a used car you like. The seller hands you the service book, every page stamped, and says the words you wanted to hear: full service history. It looks reassuring. But a stamp is just ink. It tells you a book was stamped. It doesn't tell you the work behind that stamp was ever done.
A genuine service history is more than stamps. It's stamps backed by matching tax invoices, with dates and odometer readings (the reading of how far the car has travelled) that climb in a steady line. A faked or padded one is stamps with nothing behind them. Knowing how to tell if a logbook is genuine comes down to checking the paper trail behind the stamps, not the stamps themselves. Here's what a mechanic looks at, and how you can do the same before you buy.
Start with what a real history looks like, because once you've seen a good one, a bad one stands out.
A genuine service book has a stamp for each service, and behind most of those stamps sits a tax invoice for the same date, the same odometer reading, and the work that was done. The dates move forward in a sensible pattern. The readings climb at a steady rate that fits how far the car is driven each year. On newer cars, some or all of this may sit in a digital service record held by the maker or dealer instead of a paper book.
The book should also make sense for the car in front of you. A five-year-old car driven 15,000 km a year should show roughly five services, spaced about a year apart. If the story the book tells matches the car, that's a good sign. If it doesn't, that's where you start asking questions.
Most faked histories aren't clever. They fall down on small things a careful look picks up.
You don't have to take the book on trust. A few quick checks turn stamps into proof.
A service history isn't just paperwork. It's the record of whether the car has been looked after.
When a history is padded to look complete, the services it claims may never have happened. The timing belt that should have been changed, the transmission fluid that should have been replaced, the coolant that should have been flushed, could all be overdue. You don't find out until something fails. By then it's your car, and your bill.
There's a resale cost too. When you come to sell, the next buyer will run the same checks you should be running now. A history that doesn't hold up drops what the car is worth.
Sometimes, in part. A paid vehicle history report run against the VIN, or a registration check in some states, can show earlier odometer readings and things like finance owing or a write-off. Neither gives you the full service record, so you still need to match the stamps to invoices and ring the workshops that did the work.
No. It means the car was booked in for the services it was meant to have, if the history is genuine. It doesn't tell you what condition the car is in today. A worn set of brakes or a starting oil leak won't show up in the book, which is why a mechanical inspection is still worth doing.
Not on its own. A car serviced properly at a good independent workshop can have just as sound a history as a dealer-serviced one. What matters is whether the services were done to the maker's schedule with the right parts, and whether there's proof. Independent work sometimes won't show in the maker's digital records, so lean on the invoices.
It's not automatically a deal-breaker, but it does shift more weight onto the other checks. Ask for invoices, which many people keep even after losing the book. On a newer or dealer-serviced car, the dealer may be able to confirm the digital record. If there's no book, no invoices and nothing on the maker's system, you're buying a car with an unknown history, and the price should reflect that.
You ring up to book a service and the first thing you are asked is which one you want. Nobody explains the question, so most people guess. The short answer is that a logbook service follows the list your manufacturer wrote, a standard service follows the workshop’s own, and which you need comes down mostly to whether the car is still under warranty.
You get out of the car after a short trip and something smells hot. One wheel is far warmer than the others, but the brake pedal feels exactly as it always has. That combination usually points at a sticking brake caliper, and it will eat a set of pads and a disc while the pedal keeps telling you everything is fine.
You booked a service, and at the counter you were told the car would benefit from an engine flush or a fuel system clean on top. Neither one is scheduled maintenance, and a car serviced on time usually needs neither. Here is what each job involves, when it earns its money, and the three questions worth asking before you say yes.
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