I just got my pulley today and couldn't wait to install it so I knocked it out tonight. It took all of about 45min total.
I got my ECU back from Adam on Monday which really woke the car up he sent me a 168mm Renntech pulley as well. Can't wait for full testing tomorrow.
Here 'ya go....
Remove the radiator fan in order to access the dampener's center bolt.

Grab your trusty crank pulley tool to hold the pulley in place while you loosen the center bolt.

Remove center bolt and crank pulley. Stock one on the left, Renntech on the right.

Close up shot of the pulley.

Another comparison of the two.

Install new pulley, new center bolt (torque to 148ft.lbs.+90deg.), make sure both belts are back on properly, install radiator fan, engine cover and you're done.

I was able to access everything from above so the car never needed to go up on ramps which made the install very straightforward.
I got my ECU back from Adam on Monday which really woke the car up he sent me a 168mm Renntech pulley as well. Can't wait for full testing tomorrow.
Here 'ya go....
Remove the radiator fan in order to access the dampener's center bolt.

Grab your trusty crank pulley tool to hold the pulley in place while you loosen the center bolt.

Remove center bolt and crank pulley. Stock one on the left, Renntech on the right.

Close up shot of the pulley.

Another comparison of the two.

Install new pulley, new center bolt (torque to 148ft.lbs.+90deg.), make sure both belts are back on properly, install radiator fan, engine cover and you're done.

I was able to access everything from above so the car never needed to go up on ramps which made the install very straightforward.
MBWorld Fanatic!
handy man at his best again it seems and showing pics! i love it 
is that the new gel renntech pulley by the way?
is that the new gel renntech pulley by the way?
Senior Member
Brian,
Well done, and well documented!
I'll be doing this myself shortly... Might I ask where you got your crank pulley holder tool?
Thanks,
RoydRage
Well done, and well documented!
I'll be doing this myself shortly... Might I ask where you got your crank pulley holder tool?
Thanks,
RoydRage
MBWorld Fanatic!
Good work Brian. 45 minutes! And thanks for the pics.
The MB book says 3 hours for the pulley alone and the tech that did mine took nearly 1.5 hours. Of course, the shop wanted to be paid on 3 hrs.
The MB book says 3 hours for the pulley alone and the tech that did mine took nearly 1.5 hours. Of course, the shop wanted to be paid on 3 hrs.
MBWorld Fanatic!
Do your knuckles have any skin left on them?
Well done.
Is it really a DIY?
Well done.
Is it really a DIY?
Quote:
Well done, and well documented!
I'll be doing this myself shortly... Might I ask where you got your crank pulley holder tool?
Thanks,
RoydRage
http://stores.ebay.com/KONIKTOOLSOriginally Posted by RoydRage
Brian,Well done, and well documented!
I'll be doing this myself shortly... Might I ask where you got your crank pulley holder tool?
Thanks,
RoydRage
The tool was only $38 so it was well worth it.
Quote:

is that the new gel renntech pulley by the way?
LOL, absolutely! I figured there HAS to be others out there that like to do their own work too. Might as well include some pics while I'm at it.Originally Posted by Zod
handy man at his best again it seems and showing pics! i love it is that the new gel renntech pulley by the way?
No, this is the older style pulley.
Quote:
The MB book says 3 hours for the pulley alone and the tech that did mine took nearly 1.5 hours. Of course, the shop wanted to be paid on 3 hrs.
3 hours!!?? That had to include lunch and few coffee breaks. Now you know why I DIY as much as possible. Crooks.Originally Posted by DFW01E55
Good work Brian. 45 minutes! And thanks for the pics.The MB book says 3 hours for the pulley alone and the tech that did mine took nearly 1.5 hours. Of course, the shop wanted to be paid on 3 hrs.
Quote:
Well done.
Is it really a DIY?
There's a plenty of room once the fan is removed. No knuckle busting or blood letting at all, unlike the small donation I left with the header install.Originally Posted by OzE55
Do your knuckles have any skin left on them?Well done.
Is it really a DIY?
If you have the crank tool, a breaker bar, 27mm socket, and a good torque wrench then yes, definitely a DIY project.
MBWorld Fanatic!
awesome write up! That crank holder tool definitely saves some time
MBWorld Fanatic!
Nice write-up with pictures 
Hows the VRP pulley wrap kit?
Hows the VRP pulley wrap kit?
Banned
Nice job Brian!!! You weren't kidding when you told me you wrenched on your own car.. I figured, ok, you would do the TB but, I didnt think you'd do the crank pulley.. Good for you!!! 



BTW, do you know how much I paid for that damn crank pulley tool from MB???? $376!!!!!!!!
BTW, do you know how much I paid for that damn crank pulley tool from MB???? $376!!!!!!!!
Quote:
If you have the crank tool, a breaker bar, 27mm socket, and a good torque wrench then yes, definitely a DIY project.
Originally Posted by BrianS
There's a plenty of room once the fan is removed. No knuckle busting or blood letting at all, unlike the small donation I left with the header install.If you have the crank tool, a breaker bar, 27mm socket, and a good torque wrench then yes, definitely a DIY project.
MBWorld Fanatic!
Quote:
I like factory tools for certain tasks, but they tend to be expensive. For the crank holder tool, you figure it's not one that's going to get used often, so it's not necessary to spring for the MB factory tool (unless you're in the business of doing pulleys). Baum Tools offers an equivalent tool for about $125, and at the lower price end is the one linked to in the post above and one offered by ZDMak tools for around $40 (probably same supplier as the other inexpensive one - from China with leaded paint on it Originally Posted by vrus
BTW, do you know how much I paid for that damn crank pulley tool from MB???? $376!!!!!!!!
).A case where it didn't pay to go cheap was the calibrated oil dipstick. The aftermarket one was inexpensive, but didn't really fit correctly down the dipstick tube. I ended up getting the factory tool and using it to confirm the fill level after oil changes - more accurate than the onboard display and of course fit with no problems.
Senior Member
Quote:
If you have the crank tool, a breaker bar, 27mm socket, and a good torque wrench then yes, definitely a DIY project.
Thanks Brian,Originally Posted by BrianS
There's a plenty of room once the fan is removed. No knuckle busting or blood letting at all, unlike the small donation I left with the header install.If you have the crank tool, a breaker bar, 27mm socket, and a good torque wrench then yes, definitely a DIY project.
I definately think I can handle that!

Best,
RoydRage

Quote:

Hows the VRP pulley wrap kit?
Thanks. The wrap kit is holding up great and I had enough slack in the belt to accomodate the larger 168mm pulley. If the pulley was larger then I would have needed a longer belt.Originally Posted by phatmitzu
Nice write-up with pictures Hows the VRP pulley wrap kit?
Quote:
I definately think I can handle that!
Best,
RoydRage
Originally Posted by RoydRage
Thanks Brian,I definately think I can handle that!

Best,
RoydRage
Damn, now I gotta go change my shorts! So you may a few spare sockets laying around...
Senior Member
Quote:
Damn, now I gotta go change my shorts! So you may a few spare sockets laying around...
Just A FEW!Originally Posted by BrianS
Damn, now I gotta go change my shorts! So you may a few spare sockets laying around...
LOL!

RoydRage
MBWorld Fanatic!
Quote:
LOL!

RoydRage
some one loves their tools!! Originally Posted by RoydRage
Just A FEW!LOL!

RoydRage

MBWorld Fanatic!
Quote:
I definately think I can handle that!
Best,
RoydRage
good lord, your tools are probably worth 4Xs as much as my car!Originally Posted by RoydRage
Thanks Brian,I definately think I can handle that!

Best,
RoydRage

MBWorld Fanatic!
Brian, good job there buddy! Glad you like your pulley and software. 
OT: Hey Tony, show em your welder.
OT: Hey Tony, show em your welder.

Senior Member
I'm working on changing a pully. This is not as easy as it sounds, at least not for me. I'm having trouble getting the hoses loose from the back of the fan. It is very tight behind the fan and I don't see how you could do everything from above, but I've never seen it done. I'm working from above and below and can't see how to get them loose, especially on the drivers side. Any suggestions? I guess I could put it back together and take it to a shop. My dealer is not mod friendly.
Junior Member
Hoses from the FAN ??
I have to go out to the garage and check this one out.
I have to go out to the garage and check this one out.Senior Member
I think they are just clamped to the back of the fan but I can't see how to get them loose.
Quote:
It turned out that one of the fasteners was missing on mine which happened to be the small (10mm I think) one at the bottom of the fan shroud. That particular bolt held the coolant pipe in place at the bottom. The other nut is is located directly in front of the power steering pump pulley. Push the hoses aside and you'll be able to access it no problem. Box end wrench or a smaller 1/4" drive ratchet will work. Then pull the coolant pipes out of the plastic mount. Look at it for a minute and it should be pretty clear.Originally Posted by waxking1
I think they are just clamped to the back of the fan but I can't see how to get them loose.
Check out the attachment which might help out a bit more. Sorry if I wasn't clear but you should be good to go now.