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New c70 owner

15K views 232 replies 11 participants last post by  Chemilla  
#1 ·
Hello so i bit the bullet and brought a c70 with 117,000 on the dash. There a squeak on the belt but other than that car sounds fine. The dealer is sketch but asking once i get the car checked out what major repairs should i do first? Also wonder if the oem coolant is supposed to blue. I'm a Subaru mechanic so volvos are enigma to me and kinda weird enough to own.
 
#3 ·
Congratulations! The first thing you want to address is the timing belt and tensioners, they're due at 120k miles or 10 years. Same thing for the serpentine belts and tensioners. Replace those ASAP because these are interference engines. Also you'll want to replace the radiator hoses, heater core hoses and the thermostat housing, They have plastic composite fittings that degrade and will leak coolant. These engines are very sensitive to overheating.

It's possible it has old coolant or has an universal one. I know the genuine stuff was blue at some point, but they changed it to green here in the U.S. at some point. While in other parts of the world is still blue. With that being said, all the jugs of genuine coolant I bought during the past 4 years, all of them were green.
 
#7 ·
Congratulations! Where's the obligatory pics?

Repairpal.com puts timing belt replacement around a grand, which is about what I paid for. It was the first thing I had done immediately after buying it, based on a lot of comments here and elsewhere about P1 Volvos.

I've been trying to do my own work since then as a complete-amateur-with-no-experience-let-alone-with-Volvos. For a guy trying to learn, reading stuff and watching videos about getting P1 Volvos to Stage 0 has been helpful for first maintenance and repairs. A few are here, there, and yonder plus different posts here at SS. I've also found helpful DIY writeups at Pelican Parts and Import Sauce. There's also a few tech documents over at the UK Volvo Owner's Club.

IPDUSA, FCP Euro, Viva Performance and Elevate seem to be popular for parts, OEM and aftermarket. I've been using FCP Euro mostly so far since shipping has been free. I ordered a few things from Erie VoVo, which is one of the go-to's for used parts.

If you're a mechanic, then you may be interesting in getting VIDA/DICE. VIDA is the software Volvo dealers use and DICE is the OBD2 diagnostic tool. Here's one youtube video explanation. And you may want to check out this website if you're interested in getting your own setup.
 
owns 2009 Volvo C70 T5
#8 ·
THIS is what the OP was looking for, and I was too busy to give. 100% need to stage zero it, and TB is first.
 
#13 ·
If the engine is properly mantained, you can get lots of miles out of it. 300k miles won't be difficult at all to get out of it and I bet it would still have more to go. There are several cars with basically the same engine at that mileage (C30, S40, S60, V50 and V70 IIRC). I don't remember reading about turbos failing prematurely, but shoudln't be expensive to repair/rebuild.
 
#17 ·
Well, you can check it, there’s a yellow dipstick on the front of the transmission under the ECU, not very easy to access, but if you remove the ECU cover, you can reach it.

Here's the picture: (It's my other car, but the transmission is the same, just ignore the engine (which is basically the same, but non turbo)
Image


And there’s this “procedure” to check the ATF level:

 
#40 ·
Unfortunately no, there aren't many aesthetic mods available for these cars nowadays. There used to be some front splitters and rear diffusers and other minor stuff available, but they were discontinued quite a while ago. The way I see this, is that it will have to be a custom work, either starting from scratch or adapting parts meant for other cars.

This is the latest thread about a front splitter:
 
#52 ·
It is but pretty much what @Facusan said. I've burnt a lot of time searching for mods and there's just not much aftermarket (front splitter, spoiler, headlights, head units, etc). After a while I realized I was focusing on the wrong thing (for me at least) and shifted focus to staging. Haven't given up on mods, just trying to be smarter with my time.
 
owns 2009 Volvo C70 T5
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#48 ·
The trans error is weird, Since this is the car where they replaced the trans, I would check the ATF level.

P0271, check for boost leaks. You could also monitor the MAP sensor readings, stock boost pressure at WOT is ~10 psi. 1st and 2nd gear is limited to 5psi.
 
#57 ·
All transmissions can fail, it all depends of how they were used and mantained. I bet that most of the Volvo AW55 transmissions that failed, it's because they're high mileage and never had a fluid change (Volvo says the fluid is "lifetime"), so nobody cares to do it. Keep in mind these are NOT the same transmissions as the infamous GM 4T65-E that were notorious for failing in the XC90 and S80 2.9 T6 vehicles.

If you only had a warning message but not any signs of a transmission problem (gear slipping, or the discovery of a new "neutral" gear), it could be an electrical issue. In that case, I would check for loose connectors at the trans and the wiring harness for damages.

Now if you're having obvious signs of the transmission failing and the fluid looks ok. I would try changing it just to rule out the possibility of it being filled with the incorrect stuff.
These transmissions are filled thru the dipstick. DO NOT remove the bolt on the top, that's the 3rd gear band anchor bolt. Otherwise, bye bye 3rd gear.
 
#61 ·
You could try making a thread asking if there's another forum member with VIDA close to your area that could help you scanning the car. If not, check in ebay for a DiCE unit, they run around $130 and you'll need a laptop running windows 7 to install VIDA.

Here's the link of a DiCE (Link here): it says the seller is located in Suffern, NY
 
#66 ·
Hopefully is something simple. Be careful where you download the software. Some of them are infected with viruses. If you try to install them, try doing it on a spare laptop that doesn't contain important files. So worst case scenario you can restore it and go back to normal.
 
#67 ·
i have back up of my os. full image saved to a nas. ( two just in case) so I'm hoping this works. i was reading another post about someone c70 transmission failing ang when they restart in didn't come back so since mines did im hoping it fine and not that serious but i have to wait till 18th to find out. lucky i have one of those warrenties i can use if the transmission is not a simple fix.
 
#72 ·
I think you wrote that you got your car at a dealers. They should have a warranty with it, so I'd take the car back to them and let them do the work and repairs. Even if it isn't a Volvo dealer & shop, they should stand behind their warranty. If it is a Volvo dealer, so much the better. if they can't fix it, don't accept that. I have a 2013 C70 which I bought from a Mercedes dealership. I spotted the roof liner not working correctly, and they had to send it to a Volvo Shop to have a new one installed (on their nickel). And, when a Volvo Shop repairs anything, they stand beside it for the life of the car (your ownership) - even the parts. That's why I take my C70 to the Dealer's. Sure, I may pay a bit more, but the guarantee is worth it, and I also get a free loaner until the C70's fixed. ( I do work on changing the oil, filters, plugs and the like. I like getting my hands a bit into the car.)

Don't get too "deep" into fixing the problems; that may void the warranty. Let them do that work for you.

By the way, do NOT work on the top yourself! Lubing is fine and maybe making sure that the cables (inspect those carefully! If they are frayed, start looking for them right now. Some are almost impossible to find!) and wiring is hooked into their holders. That's important: a crushed cable will be a real headache, and not a cheap one either. Find a shop that has an experienced, certified top mechanic. Ask specifically for that.

I also discovered that using the OEM spark plugs worked wonders. I had "as-good-as" plugs in it, but when I went to the Volvo ones, it's like the car woke up.

If you want to do something good for the handling, (and, it's almost a necessity) buy an over-the-engine' stabilizer bar. That, with a beefier rear one, will almost eliminate body roll, which this car is notorious for. A windscreen is a good idea, too. They help disperse the wind when your driving with the top down, so you can easily hear the other person, and, you don't feel like the wind beat you up on lionger drives.

I had an '06, and loved it so much, had to get another C70. They are a fun car, and in my opinion, Volvo's best.

Have fun with it!

Drive laughing!

Tedders
 
#73 ·
I think you wrote that you got your car at a dealers. They should have a warranty with it, so I'd take the car back to them and let them do the work and repairs. Even if it isn't a Volvo dealer & shop, they should stand behind their warranty. If it is a Volvo dealer, so much the better. if they can't fix it, don't accept that. I have a 2013 C70 which I bought from a Mercedes dealership. I spotted the roof liner not working correctly, and they had to send it to a Volvo Shop to have a new one installed (on their nickel). And, when a Volvo Shop repairs anything, they stand beside it for the life of the car (your ownership) - even the parts. That's why I take my C70 to the Dealer's. Sure, I may pay a bit more, but the guarantee is worth it, and I also get a free loaner until the C70's fixed. ( I do work on changing the oil, filters, plugs and the like. I like getting my hands a bit into the car.)

Don't get too "deep" into fixing the problems; that may void the warranty. Let them do that work for you.

By the way, do NOT work on the top yourself! Lubing is fine and maybe making sure that the cables (inspect those carefully! If they are frayed, start looking for them right now. Some are almost impossible to find!) and wiring is hooked into their holders. That's important: a crushed cable will be a real headache, and not a cheap one either. Find a shop that has an experienced, certified top mechanic. Ask specifically for that.

I also discovered that using the OEM spark plugs worked wonders. I had "as-good-as" plugs in it, but when I went to the Volvo ones, it's like the car woke up.

If you want to do something good for the handling, (and, it's almost a necessity) buy an over-the-engine' stabilizer bar. That, with a beefier rear one, will almost eliminate body roll, which this car is notorious for. A windscreen is a good idea, too. They help disperse the wind when your driving with the top down, so you can easily hear the other person, and, you don't feel like the wind beat you up on lionger drives.

I had an '06, and loved it so much, had to get another C70. They are a fun car, and in my opinion, Volvo's best.

Have fun with it!

Drive laughing!

Tedders
Where are the wire located? Is there a picture of it
 
#76 ·
hmmmm, then I guess they put the old transmission fluid back in when they replaced the pan in 2021. No way it gets that black in roughly 9k miles. IF the transmission pan was actually replaced. There's also the possibility it's just a report error and the job was never done.

It needs to be changed for sure. But before that: did it drive fine? no other issues?

And most importantly, did you contact the dealer that sold you the car?
 
#78 ·
Changing the fluid is just a first step, to make sure the transmission is filled with the correct stuff. We don't know if it has the wrong fluid, which can complicate the troubleshooting.

Whether doing a drain & refill or flushing it is up to you. I've only done drain and refills on both of my cars (I don't have access to a flush machine) which replaces around 50% of the total fluid at a time. Did it 3 times to get it to approximately 87% new fluid. No issues so far.

Try recreating the steps that led to the warning message to see if it happens again.

The transmission isn't anything special. It's just a regular automatic transaxle that uses JWS3309 fluid. Imagine it's a subaru that you don't know the history of it:
Maybe some knucklehead topped off the trans with Rotella 15W-40.
Maybe it's a damaged wire or loose connector at the transmission module, that isn't making good contact, and when you engage reverse gear, which causes the engine to move forward and maybe pulls on the wiring.

Keep in mind, these are the only symptoms I know so far about:
  • Car drove sluggish, got P0271 (No idea if this happened again or not)
  • Engaged reverse and got a "transmission service urgent" message
  • Trans oil is black (Pretty normal at 117k miles to be honest. I bet it's the trans fluid that came from factory)
 
#79 · (Edited)
Changing the fluid is just a first step, to make sure the transmission is filled with the correct stuff. We don't know if it has the wrong fluid, which can complicate the troubleshooting.

Whether doing a drain & refill or flushing it is up to you. I've only done drain and refills on both of my cars (I don't have access to a flush machine) which replaces around 50% of the total fluid at a time. Did it 3 times to get it to approximately 87% new fluid. No issues so far.

Try recreating the steps that led to the warning message to see if it happens again.

The transmission isn't anything special. It's just a regular automatic transaxle that uses JWS3309 fluid. Imagine it's a subaru that you don't know the history of it:
Maybe some knucklehead topped off the trans with Rotella 15W-40.
Maybe it's a damaged wire or loose connector at the transmission module, that isn't making good contact, and when you engage reverse gear, which causes the engine to move forward and maybe pulls on the wiring.

Keep in mind, these are the only symptoms I know so far about:
  • Car drove sluggish, got P0271 (No idea if this happened again or not)
  • Engaged reverse and got a "transmission service urgent" message
  • Trans oil is black (Pretty normal at 117k miles to be honest. I bet it's the trans fluid that came from factory)
if funny you say that cause thats is how im treating it. So this what im gonna do im getting the dice system on Thursday right now I'm trying to get vida it installed on my laptop. (it almost done) im gonna go this shop that handles euro cars and me and the mechanic will look over the codes together. once we find out what the code is ill post, i was just outside in the car before and checking the dtcs in the car i also has a cem set which is the central module. also to add on i check the top wiring in detph the cables aren't frayed at all whihc is good but i did move the cable around in places where they cant really get caught
 
#85 · (Edited)
this morning i started her and i got this soundVimeo
Does that sound like a rattle or a woosh from a blow off valve?

EDIT: OK, i played it several times more and sounds like a rattle. I've had a similar noise on my old S40. It turned out to be the turbo wastegate, the actuator rod was loose, and that let the flapper inside the turbo to rattle when it shut. I tightened a little bit and problem solved.
 
#95 ·
Wastegate rod play? hmmmmm, that could explain why it drove sluggish bleeding exhaust gasses and not spinning the turbo enough. Also, it's weird for that being loose.