Most car vehicle owners would have found themselves in situations where their cars give up on them and nobody happens to be around to provide assistance. Similarly, mechanics finds them in the same predicament when they are presented with a vehicle construct that they are unfamiliar with and needs to be fixed. 

It is not uncommon for vehicles to breakdown at the worst possible time in the worst possible place one can imagine. Whatever the situation or scenario, it is a fact that it always pays to have adequate knowledge about something that we depend on constantly such as a vehicle and have some knowledge on how to get the vehicle working again. 

It is because of such instances that manufacturers produce their cars along with an automotive repair manual or car workshop manual which should be kept with the toolkit inside the car just in case such situations come up. The irony behind the fact that vehicle owners often have complete toolkits without the car workshop manual is actually quite ridiculous simply because the car workshop manual is in fact the most important tool of them all. 

These car workshop manuals have a wealth of information that would provide the trouble-shooters (whether it is a mechanic or the vehicle owner) an idea of what is wrong with the vehicle. From strange noises, to vehicle performance, from fuel consumption to acceleration issues, everything one needs to know about the vehicle will be in these manuals making them even more important than the USB mobile phone chargers that drivers never seem to forget to bring along. 

The fact that these manuals contain every bit of information about the vehicle will give those who take the trouble to actually go through it a clear picture of what is actually wrong with the vehicle when it misbehaves. 

These workshop manuals are not only invaluable for mechanics, but also the vehicle owners themselves. Since we all know just how much auto mechanics love to overcharge customers for repairs which in general could be handled by vehicle owners on their own without much difficulties and without having to use tools that are overly expensive. 

Most car repair manuals or factory service manuals will provide the reader with information on the exact tool that is required and in most cases these are common tools that most people already own and probably have it lying around in their garage or boots untouched from the day they acquired it. Regardless if what needs to be done is a simple oil and filter change or readjusting the suspension, whether it is about tuning the fuel injection system or fine tuning the electric traction motor, the information required will be in these manuals. 

Just by having a rough perspective of the complexity of a repair task based on these car repair manuals would give vehicle owners the ability to determine if mechanics are offering prices that are realistic. In some cases, car workshop manuals takes ‘guesswork’ out of the equation entirely as they also contain estimates on not just how long specific repairs take, which will give the owner a clear picture of how much he or she is being charged for workmanship.