Question about 1990 Mazda MX-5

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Water problems I have a Mazda MX5 from 1994. when it is raining there is water in my chassis i am hearing it when i am driving. how can i solve this problem that water through my roof is getting into my car. Kees (Netherlands)

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  • krislong09 Sep 08, 2008

    I also have water in the car, mainly confined to water on the carpets beneath and to the rear of the passenger seat and to a lesser extent in the foot rest area in the drivers side. I have recently bought the car and it has had a new roof last year. I have been in the car during heavy rain and there is no obvious leak. Also the top of the foot mat in the front does not get wet so water cant be getting in form ditrectly above it must be seeping in from somewhere else before surfacing in the front.



    Any ideas?

  • a-unholy Sep 10, 2008

    I am also experiencing the same problem. I have bought this 1990 Mazda Eunos MX5 at the end of May 2008 when the weather was still good (i.e. no rain) but the last 2 months when it has been constantly raining, I've noticed that the car seems to be feeling a bit heavy and also noticed that there seems to be water somewhere in the car. I eventually found this out the hardway after some paperwork fell through under my driver's seat and they were soaking wet.



    I have never used my car in heavy rain nor drive through a puddle of water so I wondered how the water got into the chassis. My passenger side seems to be dry and okay only the driver side seems soaking wet.



    Any suggestions?

  • akaleah Sep 16, 2008

    I have water in my 2005 MX5 - somewhere in the chassis but not inside the car. thankfully. But I can hear it slopping backwards and forwards when I go over speed bumps. This didn't happen last winter.

    I have been through a lot of heavy rain and deep puddles, but can't work out how it is trappe. I suspect there are drain holes which must have got blocked but have felt along under the car and can't find anything.

    Will be calling in at my local garage soon...

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I have a 2006 MX5 sport. The car has experienced water into the boot which was due to a blocked drain that is located just behind the driver bulkhead. When you release and secure the hood back you can see a small grill that the roof drains into on both sides of the roof bay. Firstly you can try to put warm water down, you can then see the water collecting before draining away just below the grill. If this doesn't work (as was my case) I firstly moved the plastic fittings gently apart and vacuumed out the area (ensure it is dry- don't electrocute yourself) then got a garden hose and found the drain hole that is easy to find (you'll need a small torch). Using the hose (without the valve on the end) and crimping it to vary the pressure I flushed out the debris that had collected in the drain pocket (looked like leaves and sludge, similar to the gutters). The drain comes out under the right and left underside of the car. All in all about 1 hrs work most of which was getting the hose and hoover out!

Hope this helps.

Posted on Jul 04, 2009

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In the Mk 1 (dont know about later models) there are drains that run from just behind the seatbelt tower down to just behind the rear wheels. If these are blocked at the bottom the rainwater from your soft top will end up inside the chassis along the sills. Best answer is to jack it up, pop an axle stand underneath and take a rear wheel off. You will then be able to find the bottom end of the drain. In future you will be able to find it without taking the wheel off once you know where it is. Give the plastic tube a squeeze to loosen the dirt blocking it. You can also put a bit of curtain wire through the drain tupe from the top, but be gentle.

There are also drain holes under the sill, where you put the jack, which easily get blocked and the water thencan't get out of the sill. A paperclip is good at opening these up. These drain holes are very small!

Posted on Jul 13, 2009

I have a 2002 MX5 and recently started to get this problem. Apparently its caused by the ducts which should drain water away from your chasis getting blocked. I have been told there are rubber stoppers somewhere underneath the chasis which can be removed to allow the water to drain. I plan to have a look and try to sort my own car out this afternoon, so hopefully this will work for you as well..

Posted on Oct 09, 2008

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