The largest and best supported Jaguar cars enthusiast site on the Internet!


Serving Enthusiasts since 1993
The Jag-lovers Web

Currently with 3,166 members





Jag-lovers' Ebooks
- Jag-Lovers' x300 Ebook -

3.2 - Coolant Replacement ( )

It is recommended that coolant be replacement every two years, as the anti-oxidants lose their effectiveness over time and leave the cylinder head at risk of corrosion. This in turn reduces cooling effectiveness and promotes head gasket failure.

Early models were also susceptible to a build up of sludge in the heater matrix, reducing heater effectiveness. The problem appeared to stem from the type of long life antifreeze used, and the best avoidance method is to use regular anti-freeze and change at two yearly intervals. Systems with the problem can be diagnosed as having a low heat output, assuming the engine is hot and the system set to defrost mode, and can generally be cured by repeated flushing.

Unless it is desired to completely flush through the system, it is not necessary to remove all engine drain plugs and remove the total amount of coolant.

The majority of the system can be drained by removing the header tank cap and disconnecting the lower radiator hose. The rush of fluid out of the system will also tend to pull any suspended particles with it.

Replace the hose and refill the system with a 50% mixture of quality anti-freeze and preferably distilled water. The exact percentage can be varied dependent on temperatures in your area, but it is safest to assume the residue of coolant in the engine is ineffective ad also bear in mind that as anti-freeze is less effective at cooling the engine than water, the mix should not exceed 65%.

Run the engine up to temperature with the header cap removed and heater switched to full to ensure any air pockets are released.


 

sepbar.jpg (3094 bytes)

This section currently maintained by Pascal Gademer; questions, comments, submissions and suggestions, email pascal@jag-lovers.org

 

Please help support the move to the new site, and DONATE what you can.
A big Thank You to those who have donated already!

 


       
       
       
       

Go to our Homepage
Improve your Jag-lovers experience with the Mozilla FireFox Browser!

  View the latest posts from our Forums via an RSS Feed!

Jag-loversTM Ltd / JagWEBTM 1993 - 2017
All rights reserved. Jag-lovers is supported by JagWEBTM
For Terms of Use and General Rules see our Disclaimer
Use of the Jag-lovers logo or trademark name on sites other than Jag-lovers itself in a manner implying endorsement of commercial activities whatsoever is prohibited. Sections of this Web Site may publish members and visitors comments, opinion and photographs/images - Jag-lovers Ltd does not assume or have any responsibility or any liability for members comments or opinions, nor does it claim ownership or copyright of any material that belongs to the original poster including images. The word 'Jaguar' and the leaping cat device, whether used separately or in combination, are registered trademarks and are the property of Jaguar Cars, England. Some images may also be Jaguar Cars. Mirroring or downloading of this site or the publication of material or any extracts therefrom in original or altered form from these pages onto other sites (including reproduction by any other Jaguar enthusiast sites) without express permission violates Jag-lovers Ltd copyright and is prohibited
Go to our Homepage
Your Browser is: CCBot/2.0 (http://commoncrawl.org/faq/), IP Address logged as 23.20.162.200 on 19th Nov 2017 02:43:46