VW GTI MKVI Forum / VW Golf R Forum / VW Golf MKVI Forum / VW GTI Forum -

Go Back   VW GTI MKVI Forum / VW Golf R Forum / VW Golf MKVI Forum / VW GTI Forum - > Technical Topics > GTI 2.0T Engine / Drivetrain / Exhaust / Tunes

Thread Tools Search this Thread Display Modes
Old 02-12-2018, 05:39 PM   #1
Drives: 2011 Mk6 GTI Autobahn
Join Date: Feb 2018
Location: Charleston, SC
Posts: 2
Coolant system flushed and refilled, Thermostat still overheating!

Yesterday I was driving around and I noticed my thermostat jumping way up and my coolant alert was going off. So I went to my local dealership and got my coolant system flushed and refilled, but my thermostat is still jumping up a bit.

I'm thinking it's one of 3 things, either my thermostat is going bad, the water pump is bad, or there is air in my system.

I bought my mk6 with 87k miles, currently has 89k miles on it now.

any thoughts?

Thanks in advance!

Edit: Sorry! I posted this in the wrong section! Mods feel free to remove from this section

Last edited by JDel91; 02-12-2018 at 05:43 PM. Reason: Posted in wrong section
JDel91 is offline   Reply With Quote
Old 02-12-2018, 05:50 PM   #2
Autocross Newbie
lukesGTI's Avatar
Drives: 2010 GTI 6spd Manual Black 2DR
Join Date: Apr 2014
Location: 11581
Posts: 85
Any reason the dealer flushed your coolant?

Overheating, Could be any of these..

-Check that your fans are cycling (If not check your fuse in position 19 for your radiator fans, check your thermoswitch is functioning on lower radiator, or check the fan motor itself)

-Check that you're not low on coolant and that the concentration is 50/50.

-Clogged coolant hoses or plugged radiator. If it only over heats at highway speeds sometimes the lower radiator hose collapses at highway speeds.

-Thermostat is stuck closed

-Radiator fins could be full of bugs/ dirt etc; clean it out.

-Worn out water pump thus not being able to circulate coolant correctly.
lukesGTI is offline   Reply With Quote
Old 02-12-2018, 06:40 PM   #3
FIA GT Champion
jettaglis's Avatar
Drives: '88 gli, '11 cc, '12 gti
Join Date: Aug 2011
Location: Charlotte NC
Posts: 1,086
I work at a dealer and totally do not get why you wouldn't get the vehicle diagnosed but instead just asked them to do a coolant flush. Did you really think a coolant flush would fix your overheating? Like the previous poster put up, it's probably a thermostat or water pump issue.
Should you start by throwing a thermostat in there, no... get it diagnosed.
Uni stage 3....gt3076
jettaglis is offline   Reply With Quote
Old 02-13-2018, 10:03 AM   #4
Formula 2 Driver
lilonespaz's Avatar
Drives: 2011 Candy White 3-Door GTi DSG
Join Date: Jun 2013
Location: Central Florida
Posts: 6,093
Take it back where you bought it from and have them look at it(since you've only had it for 2k miles). Or to a dealer/mechanic and say X Y and Z are happening.
Originally Posted by Blakcard View Post
listen to your gut....And lilonespaz
Originally Posted by Laimface View Post
hahaha why am I your signature
Originally Posted by damagi123 View Post
just like god intended. he didnt kill off the dinosaurs for their sweet sweet bone juice to have it go getting wasted by eco-obsessed torque thieves.
lilonespaz is offline   Reply With Quote
Old 02-13-2018, 01:27 PM   #5
Formula 2 Driver
nvturbo's Avatar
Drives: 2012 VW VERSA hatchback
Join Date: Dec 2011
Location: Charlotte, NC
Posts: 5,378
replace the water pump
....used to own a MK6 GTI
nvturbo is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

All times are GMT -4. The time now is 11:08 AM.

Powered by vBulletin® Version 3.7.2
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.