Meet some of our highly rated mechanics If you don't book and pay through the ClickMechanic platform you can't leave a review. Caterham, 8 years of experience • Front brake disc (both) replacement - including pads • Stop lamps switch replacement Harrow, 35 years of experience • Front brake disc (both) replacement • Headlamp bulb replacement Westerham, 7 years of experience • Rear brake disc (both) replacement • Side repeater lamp bulb replacement - one Coventry, 16 years of experience Edinburgh, 10 years of experience • Car Won't Start Inspection Brake Wheel Cylinder replacement Cooling Fan Motor replacement Audi Brake Disc replacement BMW Brake Disc replacement Citroen Brake Disc replacement Ford Brake Disc replacement Honda Brake Disc replacement Mercedes-Benz Brake Disc replacement Nissan Brake Disc replacement Peugeot Brake Disc replacement Renault Brake Disc replacement

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All Brake Disc replacement locations Total expert brake disc mechanics Total number of brake disc reviews Average user rating for brake disc bookings What does a Brake disc do? The brake disc is a metal disc that is part of a disc brake unit mounted at the wheel hub (modern cars usually have disc brakes all-round). It is mounted on the wheel hub. When you apply the brakes, the brake pad is forced onto the brake disc causing friction and slowing the car down. How do you know there is something wrong with a Brake Disc? When the brake disc vibrates under braking. When the car pulls to one side under braking. When the disc's surface is not smooth; if it displays grooves, spots or even cracks. When the disc's surface has a blue discolourisation. When should you consider replacing a Brake Disc? A brake disc will eventually wear out due to the amount of friction with the brake pad. Moreover, the intense heat generated during braking makes the disc thinner and will deform it, at which point the disc will become increasingly inefficient at dispersing heat.

Alternatively brake discs can be rendered ineffective by cracks, scars or even rust as well. If the brake discs have worn out prematurely or if you are experiencing trouble under braking, it is advisable to seek the help of an expert to investigate the problem and, if necessary, replace the discs as soon as possible. Driving with brakes that do not function properly can, of course, lead to dangerous situations on the road. You should always replace either both the front discs, both the rear discs or all of the discs to ensure a balanced braking experience. Usually it is advisable to change the brake pads simultaneously as they might have been affected by uneven wearing discs (due to scarring or cracking). Importantly, servicing the brake discs is key to ensure the brakes work correctly and effectively. Always service the brakes according to the guidelines set out by your car's manufacturer. What happens during a Brake Disc replacement? Mechanic will inspect the brake discs.

If necessary, the brake discs will be replaced. Mechanic will advise if the brake pads should be replaced too. Mechanic will check the brake system and, if deemed safe, will do a test drive. Mechanic will make any adjustments to optimise the braking system. How much does a Brake Disc Replacement cost? The cost of a brake disc replacement depends on your car and what parts your car's manufacturer recommends using for the replacement. Find out what you could save by having your brake disc replaced by Clickmechanic, by selecting your car at the top of this page!Edit ArticleHow to Change a Car Battery Five Methods:Do You Need a New Battery?Before Removing the BatteryRemove the Old BatteryPut in the New BatteryProperly Dispose of the Old BatteryCommunity Q&A Automotive batteries don't last forever. If you notice your headlights dimming, or if it's been three to seven years since you got a new battery, or the car needs a jump-start, it might be time for a change.

You can bring your vehicle to an experienced and trusted auto mechanic, or you can get the job done yourself. Changing a battery is a quick and easy job in most cars and vans and can be done with minimal tools. Make sure the battery needs to be replaced. You don't want to spend time and money installing a new battery if the problem is not with the battery itself. Take the following three things into consideration: Look for sulfate build-up in the form of a whitish or blue residue around the terminal — removing this can sometimes solve issues with a faulty battery. This residue may indicate a bad seal around the battery terminals and is leaking the acid out onto the terminals. Note: do not touch this powder with your bare hands, as it can often contain dried out sulfuric acid which will begin to burn your skin. Verify that the battery has been given the chance to recharge properly by driving constantly for 30 minutes (with minimal electrical usage, including the air conditioner).

Finally, you should check the alternator. Some cars also have a battery meter, with the engine running, the alternator usually maintains a charge close to 13.8 – 14.2 volts in a properly functioning charging system. The battery should have 12.4 – 12.8 volts with the engine off, and with no accessory load. Buy the correct replacement battery. Find out what kind of battery you're replacing (or the dimensions of your battery) and bring this, your car's make, model and engine size information to a local auto parts store. This is important because automotive batteries vary in size and electrical capacity and you will want to purchase a battery which matches the size of the battery tray/support in your vehicle. In some areas of the US, you will be charged a "core" fee when you purchase a new battery, if you bring in your old battery after or when purchasing your new battery you will not get charged this fee. Set up a secure working environment. Park on a flat, level surface at a safe distance from traffic, sparks or open flames.

Put on the parking brake. Don't smoke, and make sure any smokers in proximity to the working area know not to smoke as well. Remember that electricity is not the only danger; batteries contain a sulfuric acid electrolyte solution, which is highly corrosive (i.e. can burn your skin) and produces a flammable hydrogen gas. Put on gloves and safety goggles. Remove the cigarette lighter and plug the memory keeper into the lighter socket. A Complementary metal–oxide–semiconductor (CMOS) will keep the PIN codes and settings for radios and navigation systems from getting erased when you disconnect the battery. If you don't have a memory keeper make sure you have all the PINs for your electronic equipment before you start. You may wish to check your car manual to see what devices may be affected. '[Open the Hood of a Vehicle|Prop open the hood of your car]]. After opening your hood, use the prop rod to keep your hood open (Most newer cars have hoods that hold themselves up. Be aware that some cars have batteries locate elsewhere, like in the trunk, so you may not need to pop the hood at all.

Disconnect the negative terminal.disconnect the negative terminal socket before the positive terminal socket Disconnect the positive terminal. Remove the car battery. Clean the terminal clamps and the battery tray. Reconnect the positive terminal'. Reconnect the negative terminal. Apply battery lithium grease. Dispose of the used battery at service garages, auto supply stores, and recycling centers. There may be a small fee for the service, but throwing the battery away as normal garbage is not an option. In the US, most battery retailers charge a deposit on the battery, which will be refunded with the return of an old battery. If your horn goes off while reconnecting your new battery, try putting the key in the ignition on "accessories" so that the alarm knows the car isn't being stolen. Make sure to take off any plastic caps on the new battery, or else your car may not start and you will then have to deal with the molten plastic that you will have to remove.

Many Auto Electric shops will perform a test of the charging system as well as the battery and advise you of your requirements. These shops are experts in the proper function of your vehicle electrical systems. If necessary, restart all your electronic equipment by typing in the PIN code. Some large vehicles have more than one battery, sometimes in different locations. Do not let one of the hammers hit the batteries. Do not allow any automotive battery to turn on its side or upside down. You should never connect the two battery terminals directly. If you wear any rings, remove them or cover them with electrical tape or latex gloves before working on electrical systems. Even a depleted battery can deliver enough current to melt a gold ring, which would result in serious injury. Do not spray the lithium grease on any other parts of the engine block other than the positive and negative terminals. Do not allow the used battery to come into contact with your clothes.