Filed Under (Mercedes-Benz) by admin on 25-05-2011
download
Engine vibration, rpm fluctuations at idle, or poor accelerator response along with codes P2020 (P0172), P2046, P201C or P201A may be caused by a tear in the partial load vent hose at the connection to the crankcase. Air will bypass the mass air sensor — i.e. unmeasured air will enter the intake — causing the engine to run lean. The remedy: 1. Remove the supercharger. Refer to WIS document AR09.50-P-4705QK. 2.Remove and install partial load vent hose for crankcase ventilation. 3.Install the supercharger according to the WIS document above. Note: Use a “click clamp” as specified in parts information for securing hose. Ensure that the clamp is positioned as close to the end of the hose as possible and fastened tight. Parts Information: Click Clamp, 005 997 49 90 Partial Load Vent Hose, 271 018 04 82
Filed Under (Mercedes-Benz) by admin on 25-05-2011
download
Step 1. Wait for the engine to cool down and gather listed materials. Working on a hot engine is incred- ibly dumb. Step 2. Open the hood and remove the front panel and airbox. (Fig. 1.) Step 3. Protect the air intake with a cover (I used aluminum foil. (Fig. 2.) Fig. 1. Engine all assembled Step 4. Locate the spark plugs. This engine has six-cylindars and twelve spark plugs (six on each side). Select one side to do at a time. Step 5. Starting with the spark plug furthest from the firewall, remove the electrical plug and unscrew unit from the engine using the T-25 Torx bit. Use the magnet to ensure the screw is not dropped into the engine. (Fig. 3.) Step 6. Spray the spark plug boots with WD-40 to loosen them for removal. Wait a few minutes to allow solvent to penetrate. Step 7. Use the 17 mm wrench to pry the boot off from the spark plug. This is the biggest pain in the ass. Try to loosen the boot by turning the boot using your hand. Be careful not to damage or crimp the boot if using the pliers. Fig. 2. Protect your engine! Cover the air intake from accidental beer spilling! Fig. 3. Spark plugs on driver’s side with wires and harnesses intact. Step 8. engine. position labeled, engine. Do this for the entire side of the This part took the longest. Label the of the modules. The boots are both on the module and on the (Fig. 4 and 5.) Fig. 5. The engine has embossed lettering to show which boot goes where. Fig. 6. Old and new spark plugs. I used OEM spark plugs, as seen in Fig. 7. Fig. 4. Engine without spark plug modules. Step 9. Remove the spark plug. This is a pain in the ass as well. Remember, lefty- loosy, righty-tighty. Use the appropriate-sized extension to remove the spark plug. You may have to change extensions mid way. Step 10. Insert new spark plug. Spray with WD-40 before screwing in to allow for easier removal the next time you change spark plugs. Tighten to 28 N m. Step 11. Re-attach boots to the spark plugs, making sure you place them in the right order. You will feel or hear a pop when they connect. Also re-attach modules to the engine block. Step 12. Repeat on other side of engine, noting the number of new and used spark plugs as you go along. Step 13. Once complete, remove cover that was placed on the air intake and replace air box. You are done! There will be some smoke and smell as the WD-40 burns off the engine and plugs.
Filed Under (Mercedes-Benz) by admin on 25-05-2011
download
The Check Engine Light came ON on my C230 Kompressor Sport Coupe; the fault code was P0170 which is Fuel Trim Malfunction fault. The Mercedes CD repair manual was a bit vague as to what to replace. An archive search of the Benz World forums indicated that the Mass Airflow (MAF) sensor could be dirty or need to be replaced. So I thought I would clean it. In order to remove the MAF it’s necessary to remove the air filter box. In hind sight if all you really want to do is clean the MAF sensor it is possible by simply taking the top of the air filter box off and removing the air filter and spraying through the MAF screen at the sensor components. To get to the Mass Airflow sensor you need to remove the air filter box. It is held in place by two bolts toward the rear and two rubber bushings in front. Other items that are attached to it are a flex duct going to the supercharger, various electrical connectors, crankcase ventilation tube and also a vacuum line that needs to be disconnected for clearance. 1. Disconnect the battery ground cable since you’ll be disconnecting several connectors. The battery is underneath the cover/filter for cabin air. You will need to resynchronize the windows and panorama sun roof. 2. There are two bolts that have to be loosened. 3. Disconnect the inlet air duct, there’s a tab on the bottom that can make it difficult to disconnect. 4. Disconnect the vacuum line by gently pressing on the outer ring and lifting. Also disconnect the nearby connector and detach one half of the connector from the stand-off bracket. 5. Disconnect the electrical connectors by pulling on the “T” handles at the front and rear of the connectors. Also unscrew the small bracket that they are zipped tied to or cut the zip tie.
Filed Under (Mercedes-Benz) by admin on 26-04-2011
download
- with CODE (848) Electric pivoting side window Remove/Install 1 Remove paneling on C-pillar 2 Secure window against falling down. NOTE: To avoid damage to window or paintwork 3 Unscrew bolts (A) at hinges Screw for side window hinge to C pillar = 12 Nm 4 Pull back cover at opening mechanism Pull back cover at opening mechanism NOTE: For access to connecting point at opening mechanism. 5 Remove window NOTE: Caution: Do not damage window and paint if adhesive tape or support is removed Extend window toward top (B). Check seal. If necessary, replace seal of side window. 6 Install in the reverse order
Filed Under (Mercedes-Benz) by admin on 26-04-2011
download
Condition The anti-theft alarm (ATA) may sound for no apparent reason after being armed DTC P1716, indicating an interior protection/tow sensor fault may be stored in the All Activity Module (AAM) as a result. The possible cause of this condition may be a software error in the security/trip computer tow sensor. Procedure 1. Verify that this service campaign has not already been performed (see step 5) 2. Replace the security/trip computer depending on the vehicle options (see WIS: AR54.21-P-9832GH Removing and installing trip computer control module and AR82.20-P-1100GH, Removing and installing front overhead control panel). 3. Version code the AMM using StarDiagnosis (DAS) or the Hand-Held Tester (HHT) as follows: ^ 09 Trip computer ^ Set to “present” (if equipped) ^ 12 ATA Interior/anti-tow protection ^ Set to present 4. Read out and erase any relevant DTC’s using StarDiagnosis or the HHT. 5. Affix the orange sticker supplied with the replacement computer to the inside of the garage door opener access panel or Home-link(R) universal access panel. Note: The orange sticker is used to identify the vehicle as having been retrofitted with a new security/trip or security computer. Do not confuse the aforementioned orange sticker with the orange or green sticker that may already be present on the replacement security/trip computers.