Axles....OFF ON OFF ON OFF ON OFF ON...............
I have mentioned in the past the GTI has a clunk sound when coasting to a stop. Well that sound was coming louder and while clear coating the calipers I discovered something. While cleaning the right side caliper I had hold of the axle shaft and lost balance, took hold of the rotor, with my other hand, and the rotor turned. Ok, so what? The axle did not. There was a lot of play in the axle joint, CV joint, what ever you what to call it.
Ok, also mentioned before, both my axles look new and they are aftermarket.
Not mentioned before is they both have been weeping a yellow colored oil which has the pleasant aroma of gear oil. Mind you, they were not leaking from the boots, but from around the flanges and this really started during the hot days of summer.
The left axle also had some play in it, not as bad as the right one.
Shopping around I found a good "deal" on a new GS-P right axle and purchased it and held off buying a left one at this time. The picture showed this axle looking just like OEM and the description had it made in the USA. Upon its arrival the box said made in China and the axle looked just like the aftermarket one in the GTI. Great.....called the supplier they gave an additional $15 off and told me to give it a try. I installed it, test drove the GTI and had a new vibration. Plus after I parked the GTI in the garage and return to it there was a yellow puddle of oil on the floor (and that wonderful gear oil stink). This axle was returned for a full refund, including the return shipping, so nothing but time waisted. Well lets reword that statement, I have been educated on the ends and out of removing and installing and MK5 axle, so a plus.
I know replacement axles has been discussed here, so I made the decision to go with OEM but new ones are way to expensive. Also it seems OEM axles are for the most part bullet proof except the boots. I found right and left OEM axles, used, on Ebay at a fair price. Both axles arrived and looked great. The install went good, but I discovered a split in the outer boot of the right axle......crap. Totally my fault for not doing a better inspection, because the seller stated it might need new boots.
Take a look also at the picture of the left aftermarket axle, it fell apart when I removed it from the GTI. I also had to clean up the the gearbox, in this area, because it was coated in a yellow grease flim.
Now just for kicks until a replacement boot arrived I used E6000 adhesive to seal the split. I drove the GTI for about 150 miles until the replacement boot arrived and to my surprise the E6000 was still sealing the split. So for a short term fix until a boot can be replaced....E6000 works...keep this in mind.
Now boot kits are really messed up and pictures are sometimes not what you are buying. Lets take the GNK Loebro Boot Kit with axle bolt. The picture clearly showed the axle bolt, 12 point, but when the kit arrived no bolt..... a nut. Called about this and was first told my car took the nut ,not a bolt. Then another person said I was correct and they would send a bolt out, what they sent me was a Audi B5 bolt and that will not work. I threw up my hands and went to the dealer and purchased two axle bolts.
After doing my research I have come to the conclusion that Volkswagen MK5 axle boots are a maintenance item. The boots are going to split and I believe replacing the boots are about the best option. Anyone following the Humble Mechanic, on YouTube, will know he provides a lot of useful information and in his video on Volkswagen CV joints, he states CV boots are a 40,000 mile maintenance item.
I purchased a Rein CV Joint Boot Kit (without axle bolt), just to have on hand. Holy cow only one pack of grease and it is missing the large clamp. Palm Plant....
Oh about forgot, I purchased a tool for the boot clamps and since I am hoping not to be replacing axle boots everyday, I purchased a very cheap one for $9.00. Don't buy this one ( pictured below, look how it bent ) it is junk and even the seller agreed and refunded my money.* I will be purchasing a better tool when the time comes to change a boot again.
Here are the benefits of OEM axles over the aftermarket which came on my GTI.
Less vibration
No stink
No oil on my floor
Reduction in clunk sounds
Major reduction in torque steer
Out of these benefits let me address two of them.
Yes there is a reduction in the clunk sounds, but the OEM axles did not cure all. Best I can tell the remaining clunk, I have now, is coming from the duel mass flywheel area of the gearbox. Everything works great and if the radio is on the clunk can not be heard.
The reduction in torque steer. One way to fight torque steer, when using unequal length axles, is to try to get the axles to weigh the same. I really wish I weighed the the axles, but the right aftermarket axle weighed lot more than the OEM axle. My guess six to seven pounds more. The left axles were close in weight. The GTI drives and handles lot better now.
So if I had followed the advise about axles posted here and inspected my used parts better I could have saved a bit of time. But I know how to remove them and how to replace the outer boots which is not hard at all. Replacing the boots is messy because the grease seem to get everywhere, go by a Harbour Freight and get some nitrile gloves, a least 5mils, and a tarp to cover your work area. After your are finished just throw the gloves and tarp away.
OEM Right Axle...... Ebay.......$59.98
OEM Left Axle........ Ebay.......$69.99
2 OEM Axle Bolts ....Dealer....$21.63
GKN Loebro Boot Kit..Amazon..$16.99
Rein Boot Kit.........CarID.......$8.22
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Cost / Maintenance ---------- $5374.40
Miles Driven -------------- 7363
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Cost Per Mile ---------------- $0.73