HOW TO REMOVE #MERCEDES-BENZ SUPERCHARGER

Pelican Parts Mercedes-Benz Parts Catalog Accessories Catalog Mercedes-Benz How To Articles Mercedes-Benz Tech Forums Call Pelican Parts at 888-280-7799 Phones Open until 5 PM PST (8 more hours) Porsche / BMW Mercedes Audi / Volkswagen / Saab / Volvo / MINI All Enter Description or Part Number Shopping Cart Cart | Project List | Order Status | Help Get FREE Ground Shipping with the purchase of $75 in qualifying parts! FEATURES SLK-CLASS TECH ARTICLES > SLK Air Filter Replacement > Jacking Up your SLK > Drive Belt Replacement > Front Shocks and Springs > Starter Replacement > Coolant Flush > Thermostat Replacement > SLK Oil Change > More... EXTRAS > Mercedes-Benz Forums > Classifieds > Mercedes-Benz Parts List > Events Gallery > Cars for Sale Search... Go #Mercedes-Benz Home > Mercedes-Benz R170 Technical Articles > Supercharger Removal Bookmark and Share Pelican Technical Article: Supercharger Removal Wayne R. Dempsey Tom Morr Time: 4 hours Tab: $15 (gaskets) Talent: Tools: 13mm wrenches, ratchets, extensions, wobbles; screwdrivers; E12, T55 Torx bits Applicable Models: Mercedes-Benz SLK230 (1998-04) Parts Required: Replacement gaskets Hot Tip: Consider unbolting the engine mounts and raising the engine to create clearance Performance Gain: Replacing leaky gaskets restores power Complementary Modification: Replace the air filter Check out some other projects from our technical library: The highest-performance component in the Mercedes-Benz R170 SLK Kompressor is a US-sourced Eaton supercharger. This "kompressor" is a proven Roots-type twin-rotor design, one of many Eaton forced-induction units used in several other factory-supercharged cars. R170 SLKs use two prominent supercharger models. Pre-facelift cars (built prior to February 2000) have the 62 cubic-inch-displacement M62 model, while the later cars use the M45 model. The earlier cars have a larger pulley with electro-magnetic clutch; the M45 has a smaller pulley, no clutch, and a "snout" between the pulley and supercharger housing. Removal methods likely vary among models. The demonstration here is on a pre-facelift 2000 SKL230 Kompressor, which has the M62 supercharger. Our car also has TLEV California emissions, which often means more clean-air plumbing than cars built for the international market. M-B lists 1.8 hours of shop time for supercharger removal, but plan on significantly more time when doing it at home. In theory, the job is just a belt, four bolts, and a couple hose clamps. The reality is that the supercharger is tucked in tightly beneath the air cleaner housing and in front of the exhaust manifold. Access is an issue. The air cleaner housing definitely has to be removed, and the drive belt has to be slid off the supercharger's pulley. Please see our how-to articles for details on these procedures. The max-clearance approach to supercharger removal involves draining the coolant and removing the right-side radiator hose; the fan shroud and fan also come off. (We have how-tos on those procedures.) Further, unbolting the engine mounts (please refer to that article) and raising the engine slightly gives the supercharger more breathing room in the engine compartment. After watching a YouTube clip of a British mechanic remove the supercharger in a matter of minutes (TV magic?), we decided to attempt a minimalist approach. The upshot: It is possible to jockey an M62 supercharger out of an SLK230 Kompressor (engine 111.973) with the motor mounts and fan/shroud still intact. However, the supercharger must be removed in three pieces, and the main compressor housing will scuff the inner fender as it's dragged out. If your car's engine mounts and/or coolant need to be replaced anyway, the "official" steps are probably preferable, particularly if you have a second set of hands available. Total time might be comparable: disassembling the car versus disassembling the supercharger. In addition to possible paint scrapes, removing the supercharger in pieces can tear the gasket. Luckily, Pelican Parts offers replacements: #111-098-00-80-MBZ for the fiber housing gasket, #111-098-01-80-MBZ for the rubber intake gasket. Normally, the supercharger doesn't need to be removed unless its bearings are whining. When the bearings wear excessively, the rotors develop excessive play, and their fins can chafe on the supercharger's housing. Rebuild parts are available, but the average SLK owner is likely better off replacing the supercharger at that point. Replacement prices range from a few hundred bucks for functional used superchargers to around $1,200-plus for warrantied rebuilt units. Also, factory-new Eaton models are still available (#111-090-10-80-MBZ) for slightly more than $2,700 from Pelican Parts. When reinstalling the supercharger, the recommended procedure specifies tightening the two main lower bolts first. Torque spec for the supercharger bolts is 21 Nm. First, the air cleaner housing must be removed. Figure 1 First, the air cleaner housing must be removed. Next, the right-side serpentine belt has to come off (please refer to those articles). Lift the plastic cover off the cylinder head and unplug the supercharger's clutch (arrow). Large Image | Extra-Large Image Remove the two small hoses (blue arrows) between the supercharger and the secondary air injection valve (red arrow). Figure 2 Remove the two small hoses (blue arrows) between the supercharger and the secondary air injection valve (red arrow). Large Image | Extra-Large Image The valve's main hose also needs to be removed from the supercharger (arrow). Figure 3 The valve's main hose also needs to be removed from the supercharger (arrow). Next, the charge air cooler duct needs to be unclamped near the radiator's lower right corner. Large Image | Extra-Large Image The supercharger's four main mounting bolts have 13mm heads. Figure 4 The supercharger's four main mounting bolts have 13mm heads. A ratcheting wrench (arrow) is handy for unbolting the one that's in front of the radiator hose. Large Image | Extra-Large Image A wobble joint and extensions are helpful for removing the upper rear bolt. Figure 5 A wobble joint and extensions are helpful for removing the upper rear bolt. Large Image | Extra-Large Image Instead of draining the coolant and removing the fan assembly, we chose to disassemble the supercharger. Figure 6 Instead of draining the coolant and removing the fan assembly, we chose to disassemble the supercharger. Its upper housing is attached to the main compressor with four bolts, one of which is in a recess (arrow). Large Image | Extra-Large Image The upper housing's two lower bolts are accessible (arrows). Figure 7 The upper housing's two lower bolts are accessible (arrows). Large Image | Extra-Large Image The upper housing and inlet-housing bolt together (arrow). Figure 8 The upper housing and inlet-housing bolt together (arrow). An E12 Torx bit is required here. Large Image | Extra-Large Image Once free, the upper housing can be shimmied out around the radiator hose. Figure 9 Once free, the upper housing can be shimmied out around the radiator hose. If you're lucky, the gasket that mates it to the compressor housing (arrow) won't tear. Large Image | Extra-Large Image The inlet housing connects to the supercharger's tail end with four E12 Torx headed bolts. Figure 10 The inlet housing connects to the supercharger's tail end with four E12 Torx headed bolts. They're underneath the inlet tube in approximately the 1:00, 5:00, 8:00, and 11:00 locations. The lower ones are more accessible from underneath, near the exhaust manifold. (Access is improved by removing the lower engine cover and right-side crossbrace, which is secured by two bolts having T55 Torx heads.) Then the supercharger's two lower mounting bolts can be unfastened. They're too long to remove in the car unless the engine is raised. In fact, they'll scrape a little fender paint as the supercharger is shimmied out of the car. Large Image | Extra-Large Image Replacement parts are readily available, as are complete brand-new and rebuilt superchargers. Figure 11 Replacement parts are readily available, as are complete brand-new and rebuilt superchargers. This image shows the bolt locations. Large Image | Extra-Large Image If you choose to disassemble the supercharger instead of raising the engine, this image shows the approximate orientations of the four bolts that secure the inlet housing to the supercharger (arrows denote bolt holes in the supercharger). Figure 12 If you choose to disassemble the supercharger instead of raising the engine, this image shows the approximate orientations of the four bolts that secure the inlet housing to the supercharger (arrows denote bolt holes in the supercharger). Reinstallation is the reverse of removal. Large Image | Extra-Large Image Bookmark and Share Superchargers: Supercharger Gasket - to Housing on Supercharger $4.75-$6.00 view allSuperchargers: Supercharger Gasket - to Intake Fitting on Supercharger $6.00 view allSuperchargers: Supercharger Gasket $7.50 view all Comments and Suggestions: buconero Comments: It is so little effort to drain the coolant and remove some coolant hoses and fan assembly, it is simply not worth the effort to try and remove the supercharger without doing so. The intake housing and SC will then come out in one piece,all bolts are easily accessible, the SC bolts will not scratch the paint, and the motor does NOT have have to be raised to do so. You will not save any time whatsoever trying to shimmy it out as described above... July 21, 2017 Followup from the Pelican Staff: Thanks for the additional info and feedback. We appreciate it. - Nick at Pelican Parts Jo Long Comments: My supercharger in my 2000 slk 230 doesn't go on there are some wires hanging down that I Fm where they go could they be the reason the supercharger does not engage❓ June 27, 2017 Followup from the Pelican Staff: Use a wiring diagram to confirm the wire sin question are for the supercharger. - Nick at Pelican Parts da silva Comments: hi, i have a 1998 mercedes ml 230 i want to instal a kompressor can you tell me if is possible because the car has no supercharger and can you tell me the exact eaton model compatible whith my engine. tank you very much January 24, 2017 Followup from the Pelican Staff: I don't have a compatibility chart. Give The Pelican Parts parts specialists a call at 1-888-280-7799. They can figure out what part or repair kit you need. - Nick at Pelican Parts MiltonAyala Comments: Thank you for your time Nick. November 12, 2015 Followup from the Pelican Staff: No problem. - Nick at Pelican Parts MiltonAyala Comments: One last thing. I'm thinking of getting rid of the Kompressor for good, what things I need to configure to ger it runnig with no codes jumping. thanks again November 11, 2015 Followup from the Pelican Staff: I am not sure you can do that. You would ahve to buy a normally aspirated engine along with all the electronics and control modules. - Nick at Pelican Parts MiltonAyala Comments: I need to replace the timing chain tensioner. The supercharger seems to be on the way, Just to make sure, do I have to disassemble it? November 5, 2015 Followup from the Pelican Staff: If in the way, you would have to remove it from the engine. - Nick at Pelican Parts Sia Comments: Any torque setting for supercharger/air intake? October 26, 2015 Followup from the Pelican Staff: I don’t have that info. I would grab a repair manual. It will have the procedure, special tools and torque specs. Give our parts specialists a call at 1-888-280-7799. - Nick at Pelican Parts Write a Comment: Comments: (2,500 characters max) Your nickname: Your email: Email Optional - so that we can notify you when a staff member responds to your question. Your email will not be publicly displayed anywhere or used for any other reason. Upload a Photo: Choose file * I have read and agree to abide by the Comment Submission Guidelines. Submit Check out some other projects from our technical library: Got more questions? Join us in our Mercedes-Benz Technical Forum Message Board and ask a question to one of our many automotive experts. Or, see what other questions readers have asked about this article... Applies to: SLK 230 R170 (1996-04) PARTS CATALOG Porsche BMW Mercedes-Benz Audi Volkswagen Saab Volvo MINI QUICK LINKS About Us Careers Pelican Parts, Inc. 1600 240th Street Harbor City, CA 90710 Order Online or Call: 888-280-7799 CUSTOMER SERVICE Shopping Cart Track Your Order Project / Wish List Browse Shipping Options View Shipping FAQ See Our Return Policy Live Chat Contact Us CONNECT WITH US NEWSLETTER Sign Up for Pelican Pit Stop News & Special Offers Your Email Address SUBSCRIBE Copyright © 2017 Pelican Parts Inc. DMCA Registered Agent Contact Page PRIVACY POLICY Cart Project List Order Status Help This site was designed and produced solely by Pelican Parts. Pelican Parts is not associated with Porsche Cars North America in any manner, except for a mutual appreciation and love of the cars. All pictures and references to the Porsche name, and the car names and shapes are for restoration reference only, and do not imply any association with Porsche. Pelican Parts is not responsible for any typographical errors contained within the site. Information and technical articles within this website are for reference only. Consult authorized factory manuals when performing repair procedures. By entering this site, you agree to hold Pelican Parts free from any liability arising out of the use of any information contained within. Page last updated: Thu 10/5/2017 02:29:22 AM [ID:1460]