Guy's

Have a C7 Z06, 55k miles.

Brought it into the dealer for a new battery. The guy tried to sell me on a few flushes. brakes, trans, fuel system and coolant.

Trans was 599 with filter, 225 coolant, fuel, 225, brakes 225. Thoughts? If I need it do i call around and shop the price?

 

Recommended maintenance is to have the brakes and clutch fluid replaced every 3 years. The cooling system is recommended to be drained and filled every 5 years.

Nothing I can find about a fuel system flush in the owners manual so I would ignore that.

Transmission fluid is also recommended to be changed at 45k miles if you haven't.

 

I would change all fluids on schedule. If you are handy, you can save a lot of money doing it yourself. Those are hefty prices for easy-ish jobs, and there are many YouTube videos to help you out. I'd also do the rear end if I were you.

I don't put any value on my time. I just look at how much I spend on materials and smile when I know what I saved in labor. lol

 

I have similar maintenance work done at my trusted indie garage...much less expensive and high quality work. Been using this model for half a century on various sports cars including my current C7, and our family vehicles also. Saved a ton of money and built excellent long term relationships with these garages & mechanics.

 

I don't believe in auto transmission "flushes". These can stir up sediment that you don't want going through your valve body.
I believe that dropping the pan and replacing 1/3??? of the fluid a few times is a better choice, if needed.
Fuel lines? I don't like that either. Run a little Techron through if you think you need it.
Brake lines, coolant, that's different.

 

 

You didn't mention what year your car is but all of the suggested fluid flushes are recommended & are listed in your owner's manual

 

IIRC, our Owner Manual does not recommend a "flush" for any of the fluids. Just drain & refill. As Sayfoo said, flushing can stir up debris and also flushing chemicals can cause problems of their own.

 

I would probably do a triple flush if it hasn't been done already. If it has, do the recommended service.

 

I'd definitely do the rear differential. Had mine done last fall and with 37,000 miles on the clock, it was pretty low and kinda burnt. Probably low from the factory...

 

So sick of dealers and mechanics trying to get you to do this and that. Just change my oil and shut up. Tried a new shop hor my daily driver that seemed very professional. After my oil change the guy comes out with all these different fluid changes and flushes. 400 for this 500 for that OMG. Can't we all just get along.. Lol Used to always do my own oil changes but since moving my new garage is not that big.

 

I'm happy that white doing my recall of my Spyder which has them take off the rear wheel, they asked me if I wanted to do other due services and change the tires which I forgot about. Sure, they could have waited till I remembered it and had to have the rear wheel removed again at my expense. I'm not sure why it's such a big deal for you to simply say "Thank you for the suggestion. Not today.". To answer your question of "Why can't we get along.", maybe just be more comfortable with the idea that they're doing their job to suggest stuff and you are free to say "no"?

 

at least thank the man for reminding you sheesh. it all has to be done sooner or later. preferably sooner. a lot of people will drive on a single fluid change until the $hit breaks down - or not even that depending if they were reminded to bring the vehicle in for free maintenance if purchased new.

 

at least thank the man for reminding you sheesh. it all has to be done sooner or later. preferably sooner. a lot of people will drive on a single fluid change until the $hit breaks down - or not even that depending if they were reminded to bring the vehicle in for free maintenance if purchased new.

 

Here is another issue. I don't remind you to change your rear end fluid at 50K (as specified, for example) when you bring it in for an oil change and you drive for 100K and your rear end has an issue and now it needs a total replacement. At this point, you might come crying that I am the professional and should have recommended it and now it is MY fault.

Edit: Had a friend who's wife would buy a new car, check the oil level monthly or so and top it up when low LITERALLY. At the end of say 2 years, trade it in for a new car. When he found out, he put the kibosh on that and did regular oil changes and kept the car longer.

 

Appreciate all the opinions.

 

So ask them why. That is your right. I'm willing to listen to why they think so contrary to the manual. So for antifreeze, GM says 5 years and MB says 3 regardless of mileage. They might not know you did it last week, for instance. I have my friend who was an MB tech do my MB work unless he cannot. They might not know that the 10 year old car has had coolant flushed every 3 years since he doesn't log it. Their system might say that it was flushed 7 years ago.

I had a 99 E300 turbodiesel. There is no spec to say that your glow plugs have to be changed every year. That said, since mine have stuck in the head and had to be drilled out, I have made sure to take them out every year and put a 9mm bore brush into the chamber to clean off the "carbon condom" around it. If I forgot, it comes out hard and makes me scared of another break. IIRC, my tech also said something about Sprinters. The owners waited till the glow plug failed before taking it out. Often, they break in the head so the shop would suggest the customer R&R the plugs out every year to keep them from getting stuck.

Unlike many, I don't bother talking or listening to the service advisor's drivel and usually know who is working on my car and talk to them personally. I use them as an appointment clerk to set up the appointment only. I usually have discussed it with the tech and tell them what I need done. I prefer to have the tech call me if there are questions rather than to talk to him, he talks to the tech, he calls me back, etc.