Renault Laguna II - Phase 1 - Heating and Cooling - Climate Control affects acceleration - Renault Forums :: Independent Renault forum

LinkBack Thread Tools Display Modes
post #1 of 14 (permalink) Old 7th February 2006 Thread Starter
Junior Member
Join Date: Nov 2005
Posts: 3
Nominated 0 Times in 0 Posts
TOTW/F/M Award(s): 0
Thanks: 0
Thanked 0 Times in 0 Posts
Exclamation Renault Laguna II - Phase 1 - Heating and Cooling - Climate Control affects acceleration


I've had this for months now . I drive a secondhand Privilege Tourer II and am having real problems with the Climate Control. When I turn it on i.e. pressing the Auto or Aircon switch I nearly always hear a very strange buzzing sound and it dramatically affects the acceleration of the car, basically the acceleration drops and the harder you accelerate the louder the noise gets. And, when you switch the climate control system off the noise stops and acceleration goes back to normal again.

Any thoughts…actually, I would rather have a solution than thoughts but I'll take anything you wise people have to offer!
Currently in sparky's garage:
sparky is offline  
  5 Lastest Threads by sparky
Thread Forum Last Poster Replies Views Last Post
Renault Laguna II - Phase 1 - Heating and Cooling... Laguna saabguy 13 6903 7th February 2006 11:08 PM
Sponsored Links
post #2 of 14 (permalink) Old 8th February 2006
davesss's Avatar
Join Date: Sep 2005
Posts: 4,838
Nominated 0 Times in 2 Posts
Nominated TOTW/F/M Award(s): 3
Thanks: 0
Thanked 145 Times in 126 Posts
It,s surprising how much power is sapped from the engine and fuel consumption goes up when the aircon is working, what size engine do you have? It affects small engines more than big ones. If I want to accelarate quickly or on a steep uphill I turn the aircon off.

The buzzing sound you hear could be the extra strain on the compressor drive belt or the compressor itself.

I do not gett any extra noise when I switch mine on though.
Currently in davesss's garage:
2002 Laguna Sports Tourer 1.8 Dynamique Moondust VF1KGOB, Fiat Siecento Micheal Schumaker, Kawasaki KLE M/Cycle and a cheap Mountain Bike.
davesss is offline  
post #3 of 14 (permalink) Old 8th February 2006
Platinum member
SportTourer's Avatar
Join Date: Jul 2005
Posts: 2,710
Nominated 0 Times in 1 Post
TOTW/F/M Award(s): 0
Thanks: 10
Thanked 48 Times in 39 Posts
Unless you have a 1.6 petrol I wouldn't have thought you would have noticed any affect on performance.Our 1.9dci 120bhp sdoesn't appear to be affected in any way, even with a fully loaded car.

It sounds like you have a problem,the "noise" you explain isn't normal - there is probably a large unecessary load being applied to the engine due to a faulty compressor unit.
If the car runs and accelerates normally with the air con off then that rules out any other elctronic engine fault.

Currently in SportTourer's garage:
2010 Laguna III SportTourer Initiale Tom Tom.

Last edited by SportTourer; 8th February 2006 at 08:23 AM.
SportTourer is offline  
post #4 of 14 (permalink) Old 8th February 2006
Platinum member
Horatio's Avatar
Join Date: Jul 2005
Posts: 6,475
Nominated 0 Times in 7 Posts
Nominated TOTW/F/M Award(s): 8
Thanks: 0
Thanked 95 Times in 64 Posts
Yup, the noise would be enough for me to want to get it looked at, and a significant loss of power certainly isn't normal.

I've never noticed the effect of the climate on the engine on either of my L2's (2.0 IDE and 1.9dCi) though on the previous 8v 2.0 L1 RXE, it did make a small but noticeable difference to foot-to-the floor acceleration (to the point where I'd turn off the air-con if I wanted a quick start from the lights.)

A lot of modern cars have the 'sense' to disengage the air-con compressor when at full throttle for exactly this reason. I'm not sure whether the L2 is one of them though.
Currently in Horatio's garage:
2010 Laguna III Initiale.
Horatio is offline  
post #5 of 14 (permalink) Old 8th February 2006
A former user
Posts: n/a
As with the earlier Laguna I the climate control does make a noticable differance to the acceleration of the car with the smaller petrol engines.

For example if I accelerate and then pop the cc on you can notice a dip in performance straight away. However the K+N helped to smooth this out a little more.

I also report that the additional noise needs to be looked at.

Maybe drive belt related me finks - so would wear gloves and coat and not use the cc until you get it looked at because a broken belt could cost you mucho more damage + dosh me finks..

acceleration , affects , climate , control , cooling , heating , laguna , phase , renault

Quick Reply

Register Now

In order to be able to post messages on the Renault Forums :: Independent Renault forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may not post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome