If I hear some "creeking" when the car is driven in uneven places, does it mean some bearing or sth need to be changed? Car handles well. It is just that faint noise from the nose side of the car. RPM of motor does not affect this.

 

Creaking can be an almost and unlimited list of possibilities. I would start by getting some WD40 or Silicone spray and give every suspension joint, bushing, sway bar bushing, shock bushing and strut bushing a good soaking.....wait for about 30 minutes and see if that helps......it is a $2.00 fix and will almost always improve something. Don't forget the door hinges and latches.
Good luck,
Ron

 

an '07... I concur with Roncarne. There are two well known areas to me: Bushings and strut mounts... (aka "top mount")

 

Creaking could be just chassis flex.

Never use WD40 oil itself. WD40 is a degreaser and not a lubricant.

Silicone spray, on the other hand, yes.

 

With all respect to Mr. Kay:
WD40 = Water Dispersant 40th experiment.
WD 40 is harmless to rubber

 

Yes, but it is not a lubricant.

 

This my last post on this issue:

WD-40's main ingredients as supplied in aerosol cans, according to U.S. Material Safety Data Sheet information, are:
50% "aliphatic hydrocarbons". ...
<25% petroleum base oil. ...
12–18% low vapor pressure aliphatic hydrocarbon. ...
2–3% carbon dioxide. ...
<10% inert ingredients.

 

If it moves and it shouldn't: duct tape
If it doesn't move and it should: WD40

 

As one of our Australian members neatly summarised in a graphic:



Graham

 

Keep an open mind to the following:
The issue with the blue can of WD40 is that it creeps/ penetrates, i.e. it wont stay in place.
Compounding to the problem, it is excellent at stripping permanent lubrication such as grease.

The proof of this is that WD40 itself makes better products for our stated application. Such as "Spray & Stay lubrication Gel" which claims to last 12x longer! (inversely you could call the blue can 12x shorter spray and run) Its also interesting it claims to last one year. Wonder what that means about the blue can.
https://www.wd40specialist.com/products/spray-gel

 

• 12x longer lasting lubrication*

*Compared to WD-40® Multi-Use Product using Independent Lab test ASTM D5620A
Their own tests prove that the blue can lasts a month.

 

Both products were originally designed for use on wives.

 

Precisely. The original WD40 is a degreaser, it's meant to lubricate lightly, but primarily to loosen up grease and other gunk so that it can be wiped away hours later.

You need WD's full-on silicone formulas that are meant to lubricate long term.

 

I think you just need to run the car through some bumpy roads and exercise the suspension. I love old paved farm lanes because the road conditions determine your speed limit vs. a sign along it. Main roads are boring in the XKR.

 

Ok, the sound is getting worse. Service checked the underside of car and did not find anything. It feels like it came behind the dashboard, can't be heard outside the car. Any good guesses?

 

I have some "creaking" emanating from the base of my driver's seat, at the joint where the seat back is hinged to the lower seat. I can actually put my hand on the outside of the edge and identify its source. One of these days I will get down there and lubricate. I use a silicone lubricant that we use in the drapery installation business that is the best I've ever used. It is not typically available in hardware stores but available online. (see below)
https://www.ellsworth.com/products/b...20-oz-aerosol/

 

There is a source for this sort of noise: in the engine compartment there are stabilizer bars from the firewall to the fender on each side. If the bolts are in any way loose a noise will be transmitted into the cabin, and yes, it sounds as though it comes from behind the dashboard. In severe cases it become a knock rather than a squeak. Try tightening the nuts on the fittings (easily accessible).

 

Ok, will try this. Somebody said that the steering column and its bearings can do this too and suggested i lubricate "from a small hole above pedals" or sth. Definitely will try your hint first Gregory.

 

Thanks for posting this. The noise that I've been hearing in my XKR, and subsequently researching the cause, I would describe more as a knock or loud pop right behind the dash. It doesn't happen all of the time, but when it does it usually happens when I'm turning and the street is transitioning to another elevation like into a parking lot or driveway. I will take a look at the nuts on the stabilizer bars this weekend. Cheers!

 

Follow up: It wasn't the stabilizer bars in my case. I'm looking into other possibilities.