SwedeSpeed - Volvo Performance Forum banner
1 - 20 of 39 Posts

·
Registered
Joined
·
63 Posts
Discussion Starter · #1 ·
Hello :p
I just bought my 2010 S40 R two days ago with 80,000 miles on it in pretty good condition.
Sadly, after a very short amount of time, i was disappointed to discover I believe I've found my first problem with the car already
(apart from BLIS service message errors constantly... LOL)

I noticed there was a minor oil leak under the car when I saw lots of oil splattered onto the front Passenger-side lower control arm.
Upon closer inspection, I found leaking - but fresh colored - motor oil soaking one of the rubber hoses underneath behind the belt assembly.
I've only had the car a few days so I'm not 100% familiar with every part on this car... are these hoses part of the Turbo oil supply system? If so, this seems really problematic. The whole area is so coated in oil and the leak is so tiny I am having a very very difficult time locating the source of this leak!!!

If anyone has an idea as to where this leak may be coming from or where I could inspect or attempt to replace any common trouble spots on the 2.5 T5 motor... I would appreciate the help. I'm still frazzled with the experience of buying a new car I really don't know what to think having to deal with issues like this already...

Here are some pictures of the infected area:

First of all... Am I missing something here?! Is there any sort of skid-plate or plastic protection panel that comes on these cars? All of this stuff like the AC comp and those hoses seem ridiculously unprotected!! I've never owned a car with such exposed underside parts before!


If someone could give me a good run down of what these hoses are and what the silver ribbed thing is, that'd be great! I am familiar with how turbo cars work, but looking at a new one is like a really challenging puzzle every time.


Not sure if this oil just splashed here or if this is a common area for concern.


Finally, here is one of the hoses that appears to be drenched in oil. You can see in the background it is also spraying / dripping on the LCA.


Where should I begin looking?

Thank you very much in advance! :)
 

·
Registered
Joined
·
67 Posts
Sorry to see the oil spill, and yes there's a plastic skid plate on the underside to protect those components.
 

·
Registered
Joined
·
63 Posts
Discussion Starter · #3 ·
hmmm... so including the rear license plate bracket I guess that means my car is missing two things now... haha
Any clues of the possible leaky spot? I know it's hard to tell without actually being able to look at it in real life
 

·
Registered
Joined
·
1,199 Posts
I think I read somewhere that the r models don't come with skid plates because of heating issues. You should have the mounting points though. I would check before ordering one.

As for the leak, I believe that's the oil line to the turbo that's wet.
 

·
Registered
Joined
·
7,308 Posts
I think I read somewhere that the r models don't come with skid plates because of heating issues. You should have the mounting points though. I would check before ordering one.

As for the leak, I believe that's the oil line to the turbo that's wet.
That's not correct - r-designs are no different mechanically than the others. An r-design is (sadly) just trim, badging and sometimes suspension. There should always be a skid plate!
 

·
Registered
Joined
·
838 Posts
It would be useful if you could put the car on a lift, wash the underside with engine cleaner. Once all the old oil is washed off, run the car on the lift. It will be easier to determine where the leak is coming from.
 

·
Registered
Joined
·
63 Posts
Discussion Starter · #7 · (Edited)
Since I've only really got a jack or ramps to work with (i hate ramps lol) I might just consider taking it into a shop already. That way I can just have the whole thing looked over. I bought the car from a tiny corner-lot dealer so there's a chance they didn't inspect it perfectly. For peace of mind I will be ordering an underside skid plate / splash gaurd thing and get that oil line repaired or even upgraded since I'll be down that road eventually anyway, hahaha :p
 

·
Registered
Joined
·
1,199 Posts
Do they make aluminum skid plates for the s40? I gonna look into getting own for our s40. And I've read on this forum that the r doesn't come with a skid, so I could be wrong that's just what I've read.

And a good set of ramps is very helpful. I still use jack stands on a ramp, and chock the wheels, and leave it in gear, and use the ebrake lol
 

·
Registered
Joined
·
547 Posts
Can you see a source of the oil? I ask because I once had exactly this: a small oil puddle under the car and oil sprayed all over that area.... turned out to be a ripped CV boot that had a split in one of the inner folds and sprayed out the grease. The grease looked just like and was the same consistency as the motor oil. Was happy to find out it was that and not a blown hose, gasket or seal....
 

·
Super Moderator
Joined
·
9,305 Posts
The silver ribbed thing is the oil cooler. The oily crimped rubber hose near it is the power steering line. However it is very unlikely that either one is leaking.

Suggestion - pull the top front cover and look at the cam seals/cvvt pulleys. If a seal is leaking up there, it will drip down and be thrown out from the lower covers in roughly this direction. Cam seals can leak if the pcv fails, or they can simply fail over time, like they did on mine earlier this year.
 

·
Registered
Joined
·
4,373 Posts
The silver ribbed thing is the oil cooler. The oily crimped rubber hose near it is the power steering line. However it is very unlikely that either one is leaking.

Suggestion - pull the top front cover and look at the cam seals/cvvt pulleys. If a seal is leaking up there, it will drip down and be thrown out from the lower covers in roughly this direction. Cam seals can leak if the pcv fails, or they can simply fail over time, like they did on mine earlier this year.
+1
The hose just looks like collateral damage. Like tmtalpey said it's PS so the oil would be green & you'd see the level going down. Not a CV boot because you don't see small specs of grease everywhere. While it looks like the cooler is leaking that would be very rare. You can also see wet areas higher up. With the missing belly pan once oil hits that lower level the wind will fling it everywhere. The best thing to do is clean up everything so the problem will reveal itself after a short drive before it's spread everywhere. I think you'll find the source higher on the engine as well.
 

·
Registered
Joined
·
63 Posts
Discussion Starter · #13 · (Edited)
Good idea, I'll get to cleaning it up and i'll look higher up from the top to see if there's a cascade of oil anywhere. I don't think it is actively leaking and perhaps is just evidence of past issues the car might've had, but everything is still relatively moist and shiny with oil so it could be a recurring thing. I will clean up the best i can and see if i can find a better source. It's really hard to tell without being able to get the car high up in the air and running, especially now that my floor jack stopped working :/
(at least it decided to fail when i wasn't lifting the car, LOL)
 

·
Registered
Joined
·
63 Posts
Discussion Starter · #14 ·
Wiped down the area and ran the car for a bit, didn't see any dripping but after driving it for another day the hose is moist again as well as the LCA area.

I took off the engine dust covers and inspected the the cam seals and the cam gears... nothing! Bone dry on the top end which is kind of a relief I guess...

Is it possible the leak may have something to do with the front axle CV joint at all? I noticed below the rubber boot there is a decent amount of what seems exactly like motor oil, maybe a tad bit thicker or greasier. I moved the boot around a little bit but found no active dripping or super wet spots though.

This is getting really confusing. I might just be forced to take her in to the stealership or an import specialist just to have it looked over. Since I've literally only had this car for 6 days now, I'm really not in the mood to start digging into it myself... not when I haven't familiarized myself with it quite yet. :(
 

·
Super Moderator
Joined
·
9,305 Posts
What do you mean by "below the rubber boot" and "no super wet spots"? You mean, on the LCA directly below the outer CV boot? And that boot itself is bone dry?

You're probably looking for a very faint tell, at this point. Wipe things down again, and keep at it. Look more often, so you can catch it before it spreads over multiple areas and covers its tracks.
 

·
Registered
Joined
·
4,373 Posts
Check your turbo oil return line. Doesn't look like a CV in the pics. They will fling a circular pattern of thin grease 360* around the joint.
Perhaps it really is the cooler. Hit by road debris as your belly pan is missing?
 

·
Registered
Joined
·
63 Posts
Discussion Starter · #17 ·
Check your turbo oil return line. Doesn't look like a CV in the pics. They will fling a circular pattern of thin grease 360* around the joint.
Perhaps it really is the cooler. Hit by road debris as your belly pan is missing?
I'm starting to think so. As another member pointed out to me, there are o-rings connected to the cooler and oil pan that could possibly be seeping.
If you look closely at the oil cooler, you can see a few of the fins are bent / damaged, probably as a result of the missing splash guard. Maybe the splash guard is missing because it got completely destroyed by road debris, who knows...

This is kind of an enigma when I clearly see the infected area is staying wet with oil, yet when I clean it out and run the car, there's absolutely no signs of oil spraying or slowly dripping from anywhere :/
 

·
Registered
Joined
·
1,280 Posts
Have we established what fluid the leak is? It looks like tranny fluid. And the bent fins on the tranny cooler doesn't really mean much tbh. That's not that bad.
 
1 - 20 of 39 Posts
Top