MK5 Golf GTI

All Things Mk5 => How to Guides / Troubleshooting => Topic started by: Andy1994 on December 07, 2014, 09:08:20 pm

Title: Coolant temp dropping while driving
Post by: Andy1994 on December 07, 2014, 09:08:20 pm

Recently car hast started to struggle to get to 90 and sits around 70 degrees when driving and will start to climb when it idles, is this likely ti be the main thermostat or the smaller inline one, car still gets hot air

Title: Re: Coolant temp dropping while driving
Post by: chris s on December 07, 2014, 09:09:35 pm

There are loads of posts on this, I'm pretty sure you need your main thermostat replacing

Title: Re: Coolant temp dropping while driving
Post by: Andy1994 on December 07, 2014, 09:13:11 pm

yeah ive had a search just wanted to check if theres a way to determine wether its the main one or inline, dont want to unnecsarily change the main one as its a pain to do

Title: Re: Coolant temp dropping while driving
Post by: GrayMK5GTI on December 07, 2014, 09:17:51 pm

See here: http://www.mk5golfgti.co.uk/forum/index.php/topic,80793.0.html

Thermostat.