Pretty much yea, no proof then your stuck. Your buying a used car and thats one of the downsides to buying a used car. We can very easily deny and refuse to perform warranty work on a vehicle that has no maintance records and comes in for lets say a motor or a tranny or a rear end. As far as service advisors not knowing anything again thats just a comment based on "your" previous experience. I wouldnt even suggest plugs, let alone wires on a car with coils in it. Not even a coil unless it goes bad then you just replace that one coil and the plug to be safe. Maybe the intelligence of the advisors in your neck of the woods isnt up to par but I know my cars and if I dont know then I research before I say anything else about it. But back to used cars, hey you bought a used car and if you come in needing all sorts of work the dealer does their inspection to make sure it basically starts stops and steers. Used car is just that, its used. And its not a scare tactic its the bottom line. Infiniti will not cover repairs on vehicles that have no proof of maintance. Me personally, I work on cars, boats, bikes jetskis, atvs, and just about anything with an engine in it. Some people are more qualified than others as advisors Im not doubting that, but also some people think they know it all and are just weekend oil change mechanics or better yet just parts changers that think they know it all.

 

I believe what the used car manager always says is

"It is what it is, its a used car sorry cant help you"

 

Another say is. You Pay for what you get. Used car you pay less, but don't get the benefits of maintenance history or warranty unless the owner kept that.

 

There are alot of dealers that sell used cars w/o the benefit of the maintenance history. Yet they still honor the manufacturer's warranty in full.

 

I've owned nothing but used cars and I've NEVER had issues with getting warranty done. My 94 Z28 had tons of mechanical issues/leaks and they never blinked an eye when it came to fixing the motor and rear end. I've never had an issue with my Hondas nor my 96 Maxima. Still under powertrain coverage? No problem as long as the car isn't clearly abused. I'm not too worried about my VQ35 since it shows no signs of oil consumption after 43K miles. I bring up the consumption issue because that seems to be the most serious mechanical issue with the VQ35. The 5AT is bulletproof behind an NA VQ and same goes for the rear end. The consumption problem seems to be there from day one with these motors. Even for those without records, it's very easy to make a case against Nissan since the issue is clearly there with many VQ35s. If someone was having consumption issues and didn't have the records, they could easily go buy 5 qts of oil and a filter, take the receipt, scan them, manipulate the receipts with Photoshop to alter dates, signtures, etc, and they could develop as many "records" as they want. Nissan could never prove the receipts were false. It can work from both ends.

 

For those wondering, this is the "severe" maintenance schedule as required by Nissan/Infiniti:

Oil/filter every 3,750 miles (non-syn)
Air filter every 30K miles
Coolant every 60K miles
Spark plugs every 105K miles
In-cabin filter every 24K miles
Automatic transmission fluid and differential oil, not before 100K unless you tow, have a car top carrier. If you tow, etc then replace every 30K miles

That's it fellas. That's STRAIGHT from Nissan/Infiniti. Everything else is listed as inspect.

 

Lol thats it huh

Well lets see 2004 g35 service and maintance guide page 15, 15k or 24 months maintance

Replace engine oil and filter
Lub locks and hinges
Replace engine air filter
Replace in cbin microfilter
Replace wiper blades
Rotate tires (except g35 coupe)

Then you have the list of inspections and so on

24 month or 30k service page 19 for 04 g35

Replace engine oil and filter
lub locks and hinges
Replace auto trans fluid
Replace climate controlled seat filter(if equipped)
Replace differential oil
Replace engine air filter
perform engine coolant flush
replace engine drive belts
replace in cabin micro filter
replace trans fluid
replace radiator cap
replace diff fluid/trans case oil (awd)
replace wiper blades
rotate tires (except g35 coupe)

Now for knowing so much why would you wait 30k to replace an engine air filter on a vehicle equipped with a ram air box. And what in your right mind makes you think that a pair of $30 little drive belts are going to last 100k on a vehicle. The will start cracking at around 30k by 50 or 60 depending on wether, driving conditions and a list of different factors they will be coming apart (frayed) if they havent brocken yet. Then its gonna be you and your home maintaned vehicle stuck on the side of the road calling road side cause you cant drive anywhere. And that info is straight out of an 04 g35 sedan owners manual my friend. Ive got plenty of them to look at in case im in doubt about something. Bottom line 30k replace coolant, do trans, do air filter and cabin filter so it doesnt stink and do your diff fluid as well. Oil change goes without saying of course from there on in the rest of the stuff just keep an eye on it through the months to come.

 

As far as the oil consumption issue, the autos dont have the problem nearly as much as the manuals do. Its all in the heads and how they are designed. The more you beat on it (spirited driving) or downshifting oil gets stuck in the heads and doesnt come back and and just builds up there. Hence why you see some cars with valve cover seals and even valve covers that have to be replaced. Infiniti standard is 1qt for every 1k miles. More than that and we then have to do an oil consumtion test for further diagnose as to why its burning the oil. The few that Ive seen here are a result from just abusive driving.

 

So the 2004 G35 requires significantly more required maintenance than a 2003? That's news to me. I'll be happy to PDF my 2003 owners manual pages 9-6 through 9-9.


That's dependant on where you live. That should be obvious.

The belts on my old VQ30 lasted well past 100K miles and that was dealing over 9 extreme temp Kansas City summers/winters (100 degree+ and sub 10 degrees). Sure, there were cracks, but the ribs weren't broken and the rubber wasn't brittle. Hairline cracks in the belts is COMPLETELY NORMAL. I fail to see why the VQ35's belts would wear out any quicker, especially seeing how much better they're protected from the elements than the VQ30 belts. The belts on my 03 with a crap over 40K miles looks basically new. If these were timing belts, my opinion would be different about replacement.

 

Stuck in the heads? I agree that some of the 6MT do tend to burn more oil because they tend to operate at higher rpms therefore may burn more oil and the PCV system is under a bit more load under part aggressive part throttle operation.

But concerning oil getting "stuck" in the heads, that not correct. Most of the problem lies in poorly designed piston rings that allow for excessive blow-by.

As for the leaky valve covers, this has been a problem with the VQ series since day one when the VQ25/VQ30 were introduced back in 1995. It's really not much of a problem because the leakage is rarely severe. Most of time it's just a weeping gasket usually on the front corner edge. I've worked on numerous VQ30s over the years and I've never seen one that didn't exhibit this issue.

 

Down here in florida you get extremes but its not between heat and snow, its more of just humid summers and dry winters with colder weather. I see the belts here actually starting to come apart at about 40-50k on a regular basis. Cracks happen regardless and its not a need for replacing, but when you see the belts missing pieces on them thast when i recommend them.
Air filters down here also with all the road construction come in black at just around 15k. You and I both know you cant really do much with an air filter that doesnt flow any air through it.
As far as the oil consumption goes, each time that ive had to take a motor thats burning up oil and needing to do work its all in the heads. It just builds up on the valleys and just sits there. Abuse and lack of maintance will cause that.
BAck to the poorly designed piston rings, that happens more on 03-04 cobras than on infinitis. Ill have to snap some pics of what happens down here in south florida with the weather and all that next time I take an engine apart which shouldnt be long at all. You seem like the small percentage that knows the cars, Im still learning alot here but Ill snap some pics so you can see what it is that Im talkin about and just how bad it gets. When the heads get pulled off there are usually no abnormal marks or anything in the cylinder walls or around the piston rings to lead towards blow by. This is only on the g35s that Im referring to though Ive not yet had an earlier i-30 or a any of those motors apart yet. The older q45s were horrible with valve covers leaking, and it wasnt just seeping through this was a full leak right down the sides and just into your driveway.

 

dam $570 is high

 

Timing belt? What timing belt?
Am I missing something here?

 

There is a Timing Chain on the G35 or all VQ models. It never needs to be replaced.

 

Okay,... So it took me almost an hour to read thru all this info!

And am about to shell out $ 628 !!! F-ing Bucks for 30k servicing on a 04 Coupe @ Sheehy Infiniti of Annapolis,md. (after a stupid 10% discount)

why do i get the feelin am being raped already and goin to be goin in tomorrow to pay. I know it's kinda late at nite? but what can i say to reduce the pricing.. it kinda steep!

HELP. ( like my car... but am serious thinking of switchin my G to a Cedes. / i used to drive one and never felt like i was being raped while servicing my Benz.)