Things Your Mechanic Hates

Things Your Auto Mechanic Hates

Things Your Auto Mechanic Hates | 16 Automotive Don’ts

As car owners, we know a thing or two about running a car, maintaining it, what to do, and what not to do.  However, let’s admit it, our knowledge is limited compared to the expertise of car mechanics. 

To lessen your visits to the shop and save more on repairs, here are 16 things your auto mechanic hates and wants you to stop doing. 

1. Don’t ignore the “check engine” signal or other warning signs.

Things Your Mechanic Hates Check Engine Light

Drivers often dismiss this warning thinking it’s only an emission problem, however, a “check engine” warning may also indicate an oil problem, a faulty cooling system, a problem with the engine valve, the transmission, brakes, and a whole lot of other car parts.

Ignoring this warning can inflict more damage on your car’s engine, resulting in more costly repairs.

2. Don’t wait a long time before having regular car maintenance performed.

The required routine checkups of your car weren’t planned by the engineers to generate more sales from the shops. They were designed to keep your car running smoothly. 

Every vehicle relies heavily on having the right amount and the right type of engine fluid, coolant, etc. It is necessary that you follow the maintenance checkup schedule indicated in your car’s manual. This will avoid early engine failure. 

3. Don’t ignore any uncommon noises.

Any car that is running in good condition doesn’t make screeching, grinding, or rattling noises. Take note of the sounds that your car makes and when they happen. 

For example, you may be having a problem with your drive belt when you hear a squealing sound. If it’s a clunking sound, then it can be an indication of suspension issues. Grinding sounds are usually created by brake problems, while a rumbling noise can mean a tire or worn wheel bearing issue.

4. Don’t dismiss any smell in the car engine or inside the car.

Do you smell burning oil? It means the fluids or the oil could be leaking right into the exhaust and hot engine components. When this happens, there’s a possibility you’re already low on fluids. Low engine fluids can cause steering, transmission, or engine damage. 

5. Don’t buy a used car without the professional report for the pre-purchase inspection.

Things Your Mechanic Hates Auto Report

No matter how good the car looks on the outside, it mustn’t be the only deciding factor for buying it. 

A quick checkup of the engine and a test drive are not even enough to make sure you have a perfectly running car. Your car might have hidden problems that require a thorough checkup conducted by a professional. 

6. Don’t go cheap when having your brakes fixed.

Brake jobs typically cost between $250 to $350 depending on the vehicle type and the local fees for the labor. It will include new hardware, brake pads, rotor machining (only when needed), and installation. 

Don’t try other shops that offer you low prices for a brake job because it’s usually an upselling tactic.

7. Don’t drive with old, run-down tires.

When you change your tires, you need to change all of them even if only one is damaged or worn out. Try not to extend the use of worn tires as it can result in even higher expenses in the long haul. 

Driving on a curb with bad tire, for instance, can result in a bent wheel, strut, tie rod, or control arm damage that costs $1,500.

8. Don’t drive a car that’s overheated.

There are a lot of reasons an engine might overheat such as a clogged radiator, a coolant leak, or a stuck thermostat. They can all cost somewhere between $250 to $1,000 depending on the design of your car and its cooling system. 

Ignoring a temperature warning can cause severe damage to your engine and the repair costs could go up to $4,000.

9. Don’t ignore those oily and wet stains under your vehicle.

Things Your Mechanic Hates Oil Stains

The wet, oily stains under your vehicle are a common indicator of leaks in the gasket, brake, or transmission seal. This means the engine fluid is running low, which can result in power steering overheating and damage. 

Be familiar with the different car fluids so you can determine what part has a leak. Motor oil is brown; coolant is orange, green, red, or blue; and transmission fluid is dark or bright red. 

10. Don’t bring any car parts you have and ask the mechanic to install them.

In the same way that you can’t bring your own noodles and ask the restaurant to cook pasta for you, you can’t bring car parts and have the mechanic install them. This is one of the things your mechanic wants you to stop doing because car shops earn their profit from both the labor and the parts. 


Aside from that, some of the items may have a defect and they aren’t covered by the shop’s warranty. 

11. Don’t expect a car shop to diagnose your car for free.

Nothing goes free these days and the same is true when having your car diagnosed. Professional technicians also conduct a thorough inspection that goes beyond checking a specific problem in your car. 

12. Don’t tell your mechanic what to repair. 

Shops don’t like this at all since, if they turn down a repair based on your own diagnosis, they get flagged in social media for not running a diagnosis.  If they do give in to a client’s request, and the problem doesn’t go away, they’re blamed for charging for an unsuccessful repair.

13. Don’t complain about high charges from the shop.

Things Your Mechanic Hates Paying Mechanic

When your shop shows you a quotation, you can expect it’ll be a bit higher than perhaps you’d like or be able to find the parts yourself. But there’s a good reason for this. A higher cost in supplies is needed to lower the labor costs. 

Additionally, if they buy supplies outside the shop, it’ll take some time to get them all.

14. Don’t bring a car that’s dirty.

No mechanic will appreciate fixing a car littered with cigarette buttts, old food, or any unpleasant trash. Keep your car clean and keep your mechanic happy by not adding to the dirt he has to deal with when doing the repairs.

15. Don’t hide any information from your mechanic.

If you want your car to be fixed properly, you need to share everything prior to your shop visit. Try to jot down the details and monitor the problem you’ve been experiencing.

16. Don’t put fluids in inappropriate places. 

Every car fluid has its own designated place to fill up. Putting the wrong one in the wrong place can result in a damaged car that’ll cost you more in repairs.

For More Info About Things Your Auto Mechanic Hates, Call ASR Now

If you avoid these 16 automotive don’ts, your mechanic will be happy to see you on your next visit, and he’s not the only one who’ll benefit. A happy car always translates to a happy driver in the long run. 

For more information on these automotive don’ts or to schedule an appointment, call us at (951) 461-2507

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