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Jaguar XJS Washer Reservoir Cap

Identifying Problems on a Jaguar XJS Washer Reservoir Cap

Given the price of a Jaguar XJS, it is just apt for owners to pay utmost attention to each of its parts. Among these is the washer reservoir cap. This particular cap is responsible in preventing the washer fluid from leaking while you are driving your car. It ensures that the fluid stays on the reservoir until the time comes when you need to wash your windshield. Your Jaguar XJS washer reservoir cap may not be the most important part of the whole vehicle, but you still have to make sure that yours stays in good condition. And in order to do that, here are some of the things you need to be wary of:

Broken cap

If your washer reservoir cap is broken, it would be impossible for it to do its task in the best way possible. You have to make sure that cap is not broken in any way. It is usually made of rubber, which means that it can also be vulnerable. After some time, the rubber material of your washer reservoir cap may disintegrate. As a result, the cap may not be able to fully seal your car's washer reservoir.

Holes on the surface

Another common problem is the presence of holes on the surface of your washer reservoir cap. Once you notice holes on the cap, you must have it replaced right away. Otherwise, you might just risk the possibility of your washer fluid spilling in the vehicle, especially when you are constantly driving along bumpy roads. Also, if your washer reservoir does not contain enough fluid due to the holes on the cap, you may not be able to get your windshield cleaned when you need to.

Inability to seal the reservoir

Your washer reservoir cap must be able to seal your car's washer reservoir in the tightest way possible. There must not be an open space on the reservoir's lid where the fluid could seep through. Every time you refill your washer reservoir with washer fluid, take time to check if the cap is still capable of sealing the tank properly. If you have to take the washer reservoir out of the assembly, do so. Just make sure that your washer reservoir is spill-proof all the time.

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  • Taking Care of Your Jaguar XJS Washer Reservoir Cap 27 February 2013

    Every car owner knows how important it is to have clean and clear windshield at all times, and how the washer fluid plays a role to make this possible. And without a washer reservoir cap in good condition, no car owner would be able to maintain a clean windshield using their washer fluid stored in the reservoir. The cap makes sure that the washer fluid is stored in the tank, so you can get rid of accumulated dirt on the windshield without stopping the vehicle. There are certain ways to keep your Jaguar XJS washer reservoir cap in good condition, and they are as follows:


    Take time to assess the cap once in a while.

    Whenever you can, spend some time checking the littlest parts of your car like the washer reservoir cap. This way, you would know if there are problems that need immediate attention such as holes or a broken cap. You can do this after a cleaning session or at least once a month. Visual assessment wouldn't take long and doesn't require special tools, so it surely won't be a hassle for you.


    Clean the cap and the entire reservoir regularly.

    Make it a point to get rid of dirt and grime that has accumulated in the washer reservoir and on the cap on a regular basis. This will help you prevent any kind of contamination on your washer fluid, which could also affect its capacity to remove dirt and stain on your windshield. You can simply rinse the washer reservoir cap and tank with water or you may also use a small cloth or sponge to remove the sticky substance that may form on the cap. If you choose to use soap when cleaning, make sure that you rinse the reservoir and the cap properly afterwards.


    Watch out for sticky gunk buildup on the cap.

    There is also a possibility for some sticky gunk to form on your washer reservoir cap or the in the tank itself after some time. When this happens, there seems to be an icky substance on the surface that may infiltrate your washer fluid. Watch out for this in order to keep the washer reservoir fully functional. It wouldn't help if the substance mixes in with your washer fluid, so see to it that there is no gunk forming out on your washer reservoir cap.