Skip the auto shop - Our mechanics make house calls

Q: I own a 2006 Cayman S. I brought it into the dealer for some concerns - please help me decide what to do

asked by on

My rear tires are worn out and I have Porsche approved N rated tires on it, but the ones to match the front aren't available anymore so they are saying I need to do all 4 now as to not mix N ratings because the tires are different. thoughts?

I'm leaking out of my Rear main seal a bit which I know can be common, clutch is original and i'm assuming it's a good idea to have them do that while we have the transmission out? price is $1020 for the clutch kit, $70 in seals, $150 in oil and $1450 in labor which is 10 hours at $145/hr.

my front radiators are clogged and the fans behind them have debris in between. they want to remove the front bumper, disassemble the radiators from the fans and clean everything out for $350. Worth it? any draw backs for not doing it?

Thanks!

My car has 75363 miles.
My car has a manual transmission.

Hello - tire "speed range ratings" like "N" are for sustained speed at a specified load. If you participate in "track days" or other high-speed driving events, you would be wise to stick with an equivalent "N" rated tire, whether you replace them 2 at a time (both front or both rear), or all 4. For normal street driving, switching to a lower speed rating (i.e. "V") is acceptable if done 2 at a time (both front or both rear). Regarding rear main seal and clutch replacement - yes, that is a good idea to do at the same time given the high labor cost to get to that seal. Check the transmission input seal, clutch slave cylinder and pilot bearing as well while the engine is out. Yes - clogged radiators risk an engine over-heat, and should be cleaned out. Make sure radiator fans are working properly while they are disassembled as well.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  • Home
  • Questions
  • I own a 2006 Cayman S. I brought it into the dealer for some concerns - please help me decide what to do

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: clutch slave cylinder leakage.

Hi there. If your slave cylinder is leaking in this vehicle I would not recommend driving it at all. It is very likely that within just a few applications of the clutch you could lose all of the fluid in...

Q: Car pulls to the right after replacing the driver side rear tire.

Logically, if the car started pulling immediately AFTER you put a new tire on the rear, it would seem unlikely that the pulling is due to an alignment issue. Uneven tire inflation will cause pulling so do check to make...

Q: Why is my car failing CO levels at idle? It passes everything else with ease.

Hi and thanks for contacting YourMechanic. You may have to replace the distributor cap and rotor for a good, strong spark. Then, get some sea foam and put it in the vacuum system of the engine. This will clean the...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...