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 November 05, 2016

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.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

How do you activate the daytime running lights?
Some models are equipped with a supplemental daytime running light system. Essentially, this system turns on the headlights at a dimmer setting than what’s used at night to provide visibility for other drivers during the day. It’s particularly helpful for...
AC compressor not coming on
Your compressor is most likely not coming on due to your air conditioning system being low on refrigerant. When this happens the computer does not let the compressor activate to prevent damage. The refrigerant slowly leaks out over time and...
Power steering warning came on?
Hi there, thanks for writing in. I'd be happy to provide my insight. This is a common issue in the Chevy Cobalt. The electrical system on modern cars is very sensitive and everything needs to be working nearly perfect in...
What does it mean if the "O/D Off" light comes on while driving? 1999 Ford Explorer
Hi there - first thing to check is for correct fluid level in the transmission. If fluid level is correct, the most likely culprit here is a bad vehicle speed sensor (https://www.yourmechanic.com/article/how-long-does-a-speed-sensor-last). A bad sensor can cause the transmission controller...
Replaced 2 camshaft sensors and crankshaft sensor, codes coming back on straight away 2001 Honda Stream
Hi there - you don't specify which codes are being set, which might be helpful. If you're getting codes that the sensor itself is malfunctioning, it is possible to get a new sensor that is bad - not often, but...
2003 jeep liberty stuck in reverse, shifter is stuck...but crawling under and trying to manually shift from transmission stuck
Hi there. Based on what you have written above, it is highly probable that the inner linkage has come loose or there is an obstruction within the inner gear set that is causing your problem. Unfortunately, this typically requires dropping...
Cost to change old fuse 2008 Mazda 3
Fuse replacement averages $72 to $91 but you can get an exact quote if you click on "Get a Quote" at YourMechanic's fuse replacement service page (https://www.yourmechanic.com/services/fuse-replacement). Fuses are located in a variety of spots in the car including in...
Is it bad that I put 10w40 in my engine that takes 5w30?
Your vehicle does not use 5W-30 oil. The recommended oil viscosity for your vehicle, according to Kia documentation, is 10W-40. If you drive the vehicle in exceptionally cold weather, well below 32 degrees, you can use 5W-30 oil but even...
I have a 1999 ford contour and have a rather loud humming noise coming from the air filter location. It can cause the car to die.
Hi Leighanne. Thanks for contacting us today. What you are describing is often a sign of a vacuum leak or a damaged air intake. There are multiple vacuum line connections that are hooked up to different components. When one of...

Related articles

How to Put Air in Your Car Tires
Tire Tire maintenance is part of responsible vehicle ownership and maintenance. Your tires are the one component on your car that is always in contact with the road surface and is your preliminary source of traction. If your tires are...
How to Do a Tire Safety Inspection
Car tires are a big part of staying safe on the road. Check tire inflation, tread depth, and sidewalls to make sure they're in good shape.
How to Rotate Car Tires
Car tire rotation reduces blowouts and other tire-related car accidents. Tires should be rotated every 5k-6k miles or at every other oil change.