I guess we would all agree that it is the brakes that actually help us go faster more than a powerful engine would. For the simple reason that if we do not have good brakes we would not have the confidence to carry higher speeds even with a powerful engine under the hood. Yet, most of the time we take the brakes for granted and do not give them any special care. Here are a few simple tips that will help you make your brakes more effective, prolong it’s life and hopefully, sort out a few problems too.
Bedding in of a new car’s brakes
A new car’s brakes need to be “bedded-in” which means that you need to help the rotors and pads work in tandem properly. A proper bedding-in will result in a longer life and more effective brakes.
Bedding-in is done by being careful about how you apply the brakes during the first 250 – 300 kms. All braking during this period must be gradual / gentle braking. Avoid hard braking and certainly all panic braking. The brakes in a new car will have a reduced braking effect during this bedding-in period which means that you may have to apply a slightly higher pressure on the brake pedal.
If you live in an extremely crowded area, then bedding in is not going to be an easy task so what you can do is take the car out on long drives early in the morning onto the highway or other clear stretch of road and let the kms pile up so that you reach the 250-300 km target.
Bedding – in of New Pads / Rotors after installation
New Pads / Rotors that have just been installed on your car have also to be bedded in for the initial 250-300 kms and all the precautions that are applied to a new car as indicated above apply.
Warm up before a fast /long distance drive
Warming up the brakes is especially important before you go on a high speed /long distance drive where you could apply cold brakes for the first time at 120 – 140 kmph with chances that the sudden change in temperature could warp your rotors resulting in juddering of your brakes.
Warming up the brakes can be done by braking from 40/60/80 kmph to 20/40/60 kmph a few times. (2 or 3) Apply moderate pressure during this braking (not too hard nor too gentle).This should get the rotors and pads warmed for your high speed drive.
Caution: (1) Ensure to do this after checking that you do not have traffic behind you, and (2) Do not allow the car to come to a complete stop during the warm up.
Judder
Judder is when there is a shuddering sensation on the brake pedal when you apply the brakes. Initially this shuddering sensation will be felt only during high speed braking. If this is left unattended, the shuddering will also be felt at low speeds along with a higher intensity shuddering at higher speeds. The next stage is when the higher intensity shudder will also be felt on the steering wheel. Leaving this unattended will result in severe damage to the suspension and steering components.
The causes of judder are many including:
(a) Defective rotors / pads
(b) Wrong fitment
(c) A very gentle style of braking which does not remove the dust / rust accumulated on the rotors.
(d) Not drying the brakes after a wash and applying brakes at high speed with the rust still on the rotors.
(e) Sudden application of brakes at high speed when the brakes are still cold (described earlier)
If the judder is minor, it may be possible to eliminate the judder by some aggressive braking after warming up the brakes as indicated in the earlier paragraph. This is to be done after warming up the brakes. The aggressive braking helps dislodge the rust / dirt and other particles that have accumulated and which is one of the reasons for judder. If the judder does not go away with this, then the only remedy would be to change the discs and pads.
Rotors that show blue spots or have a darker colour in some areas cannot recover and should be replaced along with the brake pads.
Some people advise skimming the rotors as a cost saving measure to remove the DTV( Disc thickness variation / warping of rotors), but this needs to be done after a proper inspection as skimming of rotors have been known to make the rotors thinner than the minimum safety level and has resulted in the rotors cracking under stress.
It is best that replacement of rotors / pads are done at the earliest if found required to prevent damage to suspension / steering components.
After washing your car
After you wash your car, take it for a short spin and apply the brakes so that the water does not remain on the discs or drums. While applying the brakes for such drying do not allow the car to some to a complete stop. Even after doing this, it is possible that some water remains on the pads which can be removed by some moderate braking on your next drive.
If you have not been able to take the car out for spin after a wash, then some moderate braking on your next drive will help clear the rust.
If the brakes are stuck
On occasion, if you do not remove the water from the brakes it can lead to your brakes getting stuck. This usually happens on the rear drums and its indication is the car hesitating to move when you put it in first gear. If this is the case, do not move the car but give 2 or 3 hard taps on the drums with a wheel spanner . This will dislodge the stuck brake drum and the car will move freely. There may be a small scraping sound and this will disappear after some distance.
After driving through water
If you have traveled through water, do not continue driving without drying the brakes. Drying the brakes can be done by applying moderate pressure so that your brake effectiveness is restored.
Happy Motoring!