Alfa Romeo 4C Forums banner

1 - 20 of 22 Posts

·
Registered
Joined
·
117 Posts
Discussion Starter · #1 ·
This is to piggy back on a discussion we were having on another matter.

1. Has anyone documented that the bolt tightening has actually found bolts that were not tightened (to spec)?

2. Based on this finding, maybe we can stretch this out to a higher than recommended mileage of 12k.

Thanks much
Duke





Since this thread is already partly derailed, has anyone documented that the bolt tightening has actually found bolts that were not tightened (to spec)?

In other words, is this service remedial or precautionary?
you make two excellent points... 1. I am guilty of derailing this thread 2. I am also curious on what others have experienced.

so the least I can do is start a new thread in the appropriate section, i.e., body and appearance section.
 

·
Registered
Joined
·
48 Posts
I had mine done at the recommended interval of 12K and the service advisor did not mention any bolts being out of spec. The car didn't feel any tighter or different. However, I noticed that the service tech marked all bolts that were service with yellow marker/paint.
 

·
Registered
Joined
·
1,193 Posts
The index marks are fairly common these days. One of my cars has critical bolts index marked from the factory, and that was in 2006. One might think that the critical 4C bolts are also index marked (or should be). In which case, as long as the marks are aligned there is no need to put a wrench on it. I haven't had the 4C apart to look for index marks.
 

·
Registered
Joined
·
2,319 Posts
I had mine done at 13 months and 6000 miles and the mechanic said that there was a handful of bolts that needed some tightening and that it was a good thing I got it done, vs waiting till 12,000 miles.
In the next sentence, he stated that he has done some at the 12,000 mile mark that only had 1 or 2 that didn't almost immediately hit the torque mark, so it really is unique to each vehicle and where you drive.
The roads where I live have a bunch under construction and I managed to take out both front rims, so that might have added to the fact that my 4C had more loose parts than others.

Personally, I'd rather spend the money every year to get it done, whether or not I'm at the 12,000 mile mark, then get in an accident due to the fact that it actually needed the service.

It's your money, your car and your life and your opinions on those values might be different than mine.
 

·
Registered
Joined
·
53 Posts
My dealer has about 50 4C clients. The car with the most km has more than 70 thousand km and is several times a year on race tracks. But my dealer have never had to retighten a single screw so far (nothing was out of spec).

Gesendet von meinem SM-G950F mit Tapatalk
 

·
Registered
Joined
·
1,009 Posts
As far as I know, the tightening is needed because when a bolt loosens a bit, the movement wears out the carbon fiber. And then it gets pretty expensive to restore.
In that way, it seems like something you should do from an ethical point of view, if you ever think of selling the car.

I think the car (78000 km) felt tighter and more silent afterwards, but maybe it was just a glitch of the mind :shy:
 

·
Registered
Joined
·
127 Posts
Some people in th UK seem to think that bolts will loosen on a standing car. I don't buy into it as I'm not convinced at year 1 a car with 1000 miles will have the same service needs as another at 12000 miles.

To me the bolt tightening should be mileage based end of other than perhaps a cursory look at the. Factory witness marks to see if any have moved. That way you're not paying for a service where all bolts are costed out.

Getting AR or AR UK dealers to adjust their position will be a long shot as it's an opportunity to charge c£1,000 regardless of mileage. To some extent the first year is a factory confirmatory check given the next bolt tightening is in 2 years which kind of blows there logic out of the water given you could cover 24k miles from yr1 to yr3 and be within servicing spec.
 

·
Registered
Joined
·
1,009 Posts
Totally agree on the mileage based interval, rather than years. I would also guess that road mileage are worse than track ones, as the car get to deal with a lot more shaking.
Got mine done twice now; second one on my own cost. Only, my garage charges me 6,5h for this, so I don't get why everybody is talking about 1000+ pound or dollars...

Maybe the info can be brought together so those who want to can do this for themselves. Not that tightening a bolt to torque is spaceship technology... :nerd:
 

·
Registered
Joined
·
3,073 Posts
At 8,400 miles (~13000 km) and a visit to the dealer for oil change before winterization, the tech recommended to just wait until 12,000 miles, as he's not seen anything meaningfully loose on cars with similar miles, nor has he heard of any reason to do before distance traveled interval.

Anecdotal, but from paying attention to comments about this from people who've had bolts retorqued, the most I've heard was a that a couple needed slight tightening/torquing.

I will always file this under "Whatever Makes You Sleep At Night" ... because being rational flies out the window; facts don't matter, and each person (like their personal oil change interval tolerance) has to do whatever makes them sleep at night.

.
 

·
Registered
Joined
·
127 Posts
Totally agree on the mileage based interval, rather than years. I would also guess that road mileage are worse than track ones, as the car get to deal with a lot more shaking.
Got mine done twice now; second one on my own cost. Only, my garage charges me 6,5h for this, so I don't get why everybody is talking about 1000+ pound or dollars...

Maybe the info can be brought together so those who want to can do this for themselves. Not that tightening a bolt to torque is spaceship technology... :nerd:
It's not unusual for main deals to be charging £120ph rates which adds up and then VAT is added.

Provenance on sports/prestige cars is everything in the UK so trying to sell on a car with 'gaps' in the history is harder than getting rid of Ebola so we have to suck it up unless a pragmatic approach is taken by the service centre. That said in my mind it's only the last bolt tightening that actually counts.
 

·
Registered
Joined
·
107 Posts
So I kust had a long discussion with the Alfa 4C specialist in Zurich.
For the past 2 years they have been checking the bolts of two 4Cs - with 80k km of tracking only.
There was no single screw that had to be tightened. Out of the 42 (fortytwo!!) 4Cs they take care of, there was no need ever to do this service and he therefore told me that it makes no sense at this stage (20k km) to spend all that money.
Now I am a bit confused….
I do appreciate him to be that honest, cause eventually its money he will not earn, but wonder if using two cars as benchmark for all others is enough…
 

·
Registered
Joined
·
69 Posts
So I kust had a long discussion with the Alfa 4C specialist in Zurich.
For the past 2 years they have been checking the bolts of two 4Cs - with 80k km of tracking only.
There was no single screw that had to be tightened. Out of the 42 (fortytwo!!) 4Cs they take care of, there was no need ever to do this service and he therefore told me that it makes no sense at this stage (20k km) to spend all that money.
Now I am a bit confused….
I do appreciate him to be that honest, cause eventually its money he will not earn, but wonder if using two cars as benchmark for all others is enough…
If you

If one studies the YouTube video of how the 4C is made, it appears to show that Nylocs are used which shouldn’t loosen. In the U.K., a typical cost of a service including bolt tightening is £850.
 

·
Registered
2015 4C Madreperla White
Joined
·
162 Posts
There are diagrams with torque specifications available. I am checking these bolts during other maintenance items. I bought my car used with 12,000 miles. I installed Alfaworks blocks at 13,000 miles; at that time I checked all bolts relating to the front suspension and found every one to be within spec. I will continue doing my "tightening" as I service the car. I think the "bolt tightening service" is akin to "undercoating"... not buying it...
 

·
Premium Member
Joined
·
1,365 Posts
There are diagrams with torque specifications available. I am checking these bolts during other maintenance items. I bought my car used with 12,000 miles. I installed Alfaworks blocks at 13,000 miles; at that time I checked all bolts relating to the front suspension and found every one to be within spec. I will continue doing my "tightening" as I service the car. I think the "bolt tightening service" is akin to "undercoating"... not buying it...
LOL. The undercoating and the scotchguard treatment gimmicks.
 

·
Registered
Joined
·
70 Posts
where is this diagram at, i have never seen a link or any info on this other then every body talking about it
i have 5000 miles on my 2018
 

·
Registered
Joined
·
161 Posts
Had the first bolt tightening done on my 2015 at an independent shop. Majority of bolts were loose and way out of spec, especially the suspension bolts. I think everyone’s experience is different, but it isn’t a gimmick.


Sent from my iPhone using Tapatalk
 
1 - 20 of 22 Posts
Top