When Should I Replace My Wiper Blades?

When should I replace my wiper blades?
Experienced mechanics share their insights in answering this question :
Your wiper blades are subject to wear from dirt and debris that is wiped from your windshield or has accumulated on the wiper blade itself. The wiper blade rubber dries out and cracks from environmental elements, and they can tear if they are turned on when frozen to the windshield. Wiper blades should be replaced once a year, or more frequently if necessary.

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The Rubber is Torn or Damaged

Any torn rubber means that it is time to replace them. You should also look at the wiper`s metal arm. If it is bent, you need to replace it immediately. A bent arm will not allow the wiper to clean your windshield evenly.

Ideally, your wiper blades should last between a year to two years. If you drive more than the national average of a little over 14,000 miles per year, your windshield wipers might have a shorter life span. However, if your wiper blades are damaged or are not cleaning your windshield, have them replaced immediately.
The blade has a slot in it that holds a rubber wiper, which is the part that touches the windshield. You can replace just the rubber wiper, but replacing the entire blade is easier and does not usually require tools.
Streaking or hazing on the windshield when it rains or snows. A chattering sound when your wipers are on. This noise means they`re not swiping smoothly, but popping up and down as they go. The blades are pulling away from the windshield at higher speeds, instead of sitting snugly against the windshield.
Most makers of windshield wipers recommend that you replace them every six to 12 months. Some say the blades can last two to three years, but that`s dependent on everything from blade material to where you live.
Pull out the old wiper rubber. Grasp the side with the stopper and pull it out of the fitting with a little force. Insert new wiper rubbers. Now insert the claws of the metal fittings from the side without the lock holes while passing the claws through the grooves in the rubber.
Take a close look at your windshield wipers. Is the rubber all one smooth piece or is it cracked, split, or broken off in places? If you see any imperfections in the rubber, that means it`s time for new wiper blades. The blade may also get a rounded look, which means it`s gotten too old and you should replace it.
Cheaper blades will last on the lower end of four to six months, while reinforced all-season windshield wiper blades boast a lifespan of up to a couple years, in some cases. For most mid-range wiper blades, depending on the amount of use, lifespan can last around 6-12 months.
Wiper blades should be replaced about every twelve months. However, colder climates may require replacement sooner. This video shows some of the signs to look for that may indicate it is time to replace your wiper blades.
And in terms of durability, a silicone wiper blade wears much faster than natural rubber blades due to silicone blades` inability to cope with fluctuating temperatures (a flaw that to us seems frankly unaustralian).
To obtain superior performance from wiper blades, Bosch`s recommended replacement interval is approximately 12 months, and this can shorten dramatically if vehicles see consistent use in adverse conditions.
Windshield wiper blades can last anywhere from six months to a year on average. Blade lifespan can vary because of a variety of factors, including cleaning frequency, environmental factors and exposure to sunlight.
They`re built to flex and keep a tight seal against your windshield. As your wipers glide over this extra texture, they can deform, decay, or even erode, which causes them to wear out faster. Think of it like running your wiper blades over a thin piece of sandpaper.
Natural rubber blades are used by the majority of wiper suppliers and are what you`ll find on virtually every new car and there`s a reason for this. They tend to cause the least streaky, squeaking or smearing, and clear water best. Natural rubber blades are the most durable and best-performing option available.
Is it Legal to Drive Without Windscreen Wipers? The only time it is legal to drive without windscreen wipers is if you can obtain a clear view of the road in front without using the windscreen, or if your vehicle doesn`t actually have a windscreen.
The average cost for a windshield wiper blade replacement is between $23 and $38. Labor costs are estimated between $8 and $12 while parts are priced between $15 and $26. Estimate does not include taxes and fees.
If any company should know how to make an excellent wiper blade, it`s rubber giant Michelin—and these are indeed good blades. They`re easy to install and perform well in most conditions. They seem well-constructed, and several hinge points on the blades help them conform to the shape of the windshield.
Natural rubber exhibits much higher tensile strength, tear strength and abrasion resistance than silicone. It is used in high wear applications such as tyre treads and conveyor belts.
Bosch Icon wiper blades are a silicone rubber hybrid – it has both silicone and rubber components. The core of the wiper is made from rubber and encased in a hard polymer shell.
Being soft, it will tend to skip when there`s not enough water. However, after a few wipes it will operate quietly due to the silicone layer it leaves behind. Pro Tip: Be careful of coating products that you use on the windshield as it will affect the behaviour of the wipers.
Applying rubbing alcohol to the blade of each wiper will do two things: one, it will clean any and all debris from the wiper blade itself, helping to maintain an abrasive-free clean when you use your wipers, and two: excess grime on the blades will cause streaking and annoying squeaking noises.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

My windshield has a black mark because my wiper blade was stolen and I operated the wiper without the blade; how can I remove this
ANSWER : You can use a mild polish like a toothpaste that will clean the glass without scratching the glass. Use it with small circular motion to polish off the marks.

Is it better to replace wiper motor on 2002 dodge grand caravan or the whole wiper motor assembly?
ANSWER : You should replace the entire wiper motor assembly since the assembly will have a new wiper transmission and parking sensor mechanism.

How do I replace the wiper blades?
ANSWER : Your wipers provide visibility when it’s raining, sleeting or snowing. They’re crucial to safe driving. However, they will wear out over time and you’ll need to replace them before they cause damage to the windshield. Not sure how to do that? Here’s what you need to know:

Pull up the driver side wiper arm
Pull up the passenger side wiper arm
Lift the lock tab on the wiper blade (start with the driver side)
Slide the blade off the arm itself
Locate the metal tabs at the end of the wiper blade
Squeeze them together and pull the blade out of the holder
Remove the retainer, which is a flat metal, and install on new blade as needed
Slide the new blade into the holder
Reattach the wiper to the arm (make sure it locks securely in place)
Repeat these steps for the passenger side
Lower the wiper arms when you’re done


Don’t let the wiper arms fall on the windshield when the wipers are off. This can chip or even crack the glass.
If you don’t want to replace the inserts, you can replace the entire wiper and holder (more expensive, but faster).

My front wipers main transmission linkage/bush broke when something hit them down the bonnet
ANSWER : Hi Josh. First, it’s always best to replace the wiper motor, wiper arms and wiper blades in one rather easy swap, but if you plan on keeping the vehicle for a few more ears, i’d suggest buying new parts. To access the wiper motor, you might want to search online for a Land Cruiser repair and service manual, as this will give you step-by-step instructions for completing this service.

When Should I Replace My Wiper Blades?
ANSWER : Your wiper blades are subject to wear from dirt and debris that is wiped from your windshield or has accumulated on the wiper blade itself. The wiper blade rubber dries out and cracks from environmental elements, and they can tear if they are turned on when frozen to the windshield. Wiper blades should be replaced once a year, or more frequently if necessary.

Do i need to replace the receiver drier and/or the expansion valve when replacing the condenser assembly?
ANSWER : Replacing the system drier is absolutely essential. If the system has been open to the atmosphere (due to the leak in the condenser), the desiccant in the drier has been fully saturated with moisture. As far as the expansion valve, replacement is not normally implicated in a leak repair, in your case a leak in the condenser. To justify replacing the expansion valve, there would have to have been a diagnostic performed which proved a fault. If no diagnostic was performed, and there is no evidence of a fault, then it is pointless to replace the valve. But, again, drier replacement is absolutely essential. To add the drier to your order, you can simply add a note to the mechanic in your order and/or add it as a service (you will see a link that you can click on to "add services" or write in specific services). If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

wiper blades working reverse
ANSWER : I suggest first inspecting the wiper crank arm assembly between the wiper linkage and the motor. It may have slipped out of position. If that is secure, then yes, it sounds like you need the wiper motor and module assembly. If you need help having this checked, a qualified technician from YourMechanic can inspect your wiper system and perform the needed repair.

Does the whole steering column need to be replaced in order to replace a fried steering column module?
ANSWER : I would ask the mechanic for the exact part number of the electronic component that he believes has failed. Or, at least have him "name" the part and indicate where in the column assembly the part resides. The steering column is made up of many parts, most of which are separately serviceable. As discussed below, limp mode (reduced power) has many, many causes. Consequently I would also ask the mechanic to explain to you EXACTLY how he arrived at his diagnosis and ALSO have him show you the exact test results, on a diagnostic tool, multi-meter, or scope, that has led him to conclude that the particular "module" has to be replaced. With no evidence and no intelligible confirmation you would be taking a risk.

YourMechanic does offer a reduced power (limp mode) diagnostic. If you request a reduced engine power diagnostic the responding certified mechanic will give you confirmation of the cause of the issue in your case. Typically, a vehicle’s powertrain control module (PCM) will have stored one or more diagnostic trouble codes that will identify the "general area" in which the fault lies in the engine management controls. Although the throttle control system is a common trouble area with reduced power, there are quite a few other components and systems that could come into play and, of course, there is always the possibility of multiple, or "coincident", faults. Here are some of the possibilities that YourMechanic dispatched technicians would consider:

Defective throttle position (TP) sensor
Defective oxygen sensor
Defective accelerator pedal position (APP) sensor
Loose or damaged wiring
Defective throttle body
Defective powertrain control module (PCM) (not typical; ONLY if a long, long list of other possibilities is ruled out)
Any fault/error that will affect drivability function
Any fault/error that will affect vehicle performance
A fault/error in the emissions system
A fault/error in the throttle control system
A fault/error in the transmission control system

If you request the recommended diagnostic the mechanic will get this resolved for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.