Volvo AWD S40-V40 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 11/2016 S40-V40 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

Ignition Coil Replacement S40-V40 2010

2010 S40 2.4i 82K miles

Daughter had her S40 into the Volvo dealer today to replace a previously diagnosed misfire and rough running caused by a weak #4 ignition coil. The dealer service advisor recommended replacing all five coils because of a probability they will all fail, with #4 leading the way. We opted to replace the #4 coil only, figuring each bad coil would show itself and be replaced in turn.

Btw, dealer also recommended replacement of front control arms ("bushings are weak"); and also replacement of a "collapsing" motor mount. We figured that collapsing motor mounts sort of go with the territory of owning a FWD Volvo and we'll monitor that. Not sure about the criticality of control arm bushings, however. Daughter senses no handling or steering problems and there is no abnormal wear of tires.








  REPLY TO THIS MESSAGE    PRINT   SAVE 

Ignition Coil Replacement S40-V40 2010

Volvo cares a lot about failures on the road - that is why I had my wife"s and two daughter's Volvos serviced at my dealer.

In over 500k miles driven, we have only suffered 4 problems on the road, 2 740 alternators that failed at almost exactly 215K miles, an 850 starter, and a stuck caliper each at over 125K miles.

While I doubt it, the techs may have pictures of bushings that are in tough shape. My son-in-law who is a Subaru tech tells me that Subis are good on bushings and motor mounts, but he does on occasion tell a customer that their tie-rod bushings need replacement before failure.

Have the dealer show you the problem.

It IS possible for mechanics to have access to failure mileages or time statistics - for instance, I supervised our police mechanic, and he had lots of failure info, such as when power steering pumps should be rebuilt. We were willing to replace many items when we were advised to, in order to avoid a failure at high speed.

In Rolling Magazine, there was a story about having 742s built in Italy. When the asked the Italian designers how many cycles the gas doors were designed for - they were told that 2000 cycles were anticipated over the life of the car - Volvo wanted 10,000 cycles, so the doors had to be re-designed. They destroyed most of the first 80 or so cars that were built because they did not meet quality standards,








  REPLY TO THIS MESSAGE    PRINT   SAVE 

Re: Failure Statistics S40-V40 2010

Would be great to have access to a table of failure statistics, which can aid in troubleshooting and help to keep our cars running. For example, one could find the range of starter motor failure (our 2000 V70 has 249K miles and I'm wondering when its original starter would typically fail).

Now that the S40's control arm bushings and motor mounts are on the watch list, I'll have them checked when in the shop again. Good suggestion on carrying a spare coil in the car - already doing that in the V70.

Agree that Volvo cares about reducing the likelihood of failures on the road with its proactive parts service and replacement strategy. Can be hard on the pocketbook, which is why many of us do own maintenance. However, Volvo's typical recommendation of no transmission fluid service is confusing, since the incidence of transmission failures in AWD/FWD cars is well known.








  REPLY TO THIS MESSAGE    PRINT   SAVE 

Re: Failure Statistics S40-V40 2010

“... However, Volvo's typical recommendation of no transmission fluid service is confusing, since the incidence of transmission failures in AWD/FWD cars is well known...”

Well known incidence of failure - yep. But rarely within the warranty period. Good calculating on Volvo’s part. It’s all about convincing the original buyer that the cost of ownership will reasonable. Just like their variations in timing belt replacement recommendations. Different from state-to-state just to satisfy the laws. Even though no mechanical difference in the engines.
--
Current rides: 2005 Volvo S80 2.5T, 2003 Volvo V70 2.4NA, 1973 Volvo 1800ES (getting ever closer to road worthiness)








  REPLY TO THIS MESSAGE    PRINT   SAVE 

Re: Failure Statistics S40-V40 2010


FYI - Maybe this will help a little. On my 95 855 GLT the starter failed at about 240k. Not sure, but my guess is that your 2000 has the same starter as the 850's (being pretty much the same car).








  REPLY TO THIS MESSAGE    PRINT   SAVE 

Re: Failure Statistics S40-V40 2010

Thanks, that's helpful and a good yardstick to use for predicting starter life. Mine may be operating on borrowed time.








  REPLY TO THIS MESSAGE    PRINT   SAVE 

Re: Failure Statistics S40-V40 2010

My '97 850's starter lasted over 256K mi -maybe more, bc new owner is not giving updates :) I never thought about the starter. Did do coil twice during 16 years of owning prophylactically. Now shopping for spare coil for trunk for '06 car, bc of the posts on this site. Thx
--
Farewell 'black manta' ('97 850) Hello 'rocket sled' ('06 V70R)








  REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

Ignition Coil Replacement S40-V40 2010

I would look on the Web to price a single coil and put it in the trunk, next to a 10mm wrench in case another coil goes bad. You are correct, when a misfire happens, the CEL will light up. Then your daughter can stop by a parts store, get the code read, and replace the next coil. Replacing all at once is silly and expensive.

The other two items are 'watch' list items. You are correct. 'Weak' bushings? LOL

--
Keeping it running is better than buying new








  REPLY TO THIS MESSAGE    PRINT   SAVE 

Ignition Coil Replacement S40-V40 2010

I would have done the same thing as you.








  REPLY TO THIS MESSAGE    PRINT   SAVE 

Ignition Coil Replacement S40-V40 2010

+1







<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.