Volvo S40 The S40 is Volvo's most affordable sedan with all the amenities of a luxury sports car.

Overheating problem/thermostat?

Old 10-11-2018, 04:15 PM
Junior Member
Thread Starter
Join Date: Oct 2018
Posts: 1
Default Overheating problem/thermostat?

Hello everybody

I have 2012 s40 1.6 diesel and as I was driving home from work today I noticed that the engine temperature would go to red really quickly and after a few seconds go back down again. Also at that same time I stepped on the gas pedal to over take another car and my car didn't respond for a few seconds, it took a little bit before power kicked in and it started to accelerate.
My brother-in-law says that it is probably the thermostat and that it needs to be replaced.
I would like to see what you guys think and also if anyone can tell me where the rhermother is located.
I would like to do the job my self because money is tight right now but I need to prepare my self well wefore I take this on.

Thanks in advance
Old 10-13-2018, 03:58 PM
Join Date: Mar 2012
Location: Ridgefield, CT
Posts: 4,581

I would also.consider replacing the engine coolant temp sensor and the thermostat at the same time
Old 10-14-2018, 09:40 AM
Kiss4aFrog's Avatar
Join Date: Mar 2010
Location: Hudson, WI
Posts: 4,423

Welcome to VF Darko

I can't find anything on it but this should be a picture of the housing. It may or may not have the thermostat built in. They don't sell the diesels here in America last time I checked and most of "us" on here are in the states so diesel info is in short supply.
Have you also checked you coolant level and condition. There is a possibility it could be a failing head gasket too.

Related Topics
Thread Starter
Last Post
Volvo 240, 740 & 940
11-08-2012 03:36 PM
Volvo C70
05-22-2010 12:49 PM
Volvo 850
10-07-2009 07:20 PM
Volvo 850
10-15-2007 06:08 PM
Volvo 850
09-13-2006 01:15 AM

Thread Tools
Search this Thread
Quick Reply: Overheating problem/thermostat?

Featured Sponsors
Vendor Directory

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.