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W211 Steering Fluid Replacement Interval
On my other MB's, steering fluid has always been kept clean. My simple regimen was just to drain and fill the reservoir every 10k miles or so and, if accessible, replace the filter every 60k or so.
Any recommendation as to what do with the CDI? The fluid is pricey...around $20 a quart. The PO says he flushed it at least once a year. Overkill.
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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles 06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion 19 Honda CR-V EX 61k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife Last edited by shertex; 11-10-2015 at 04:53 PM. |
#2
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On my 2009, its never replaced. Level IS checked every 10k and topped off such that it is always at max.
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Terry Allison N. Calif. & Boca Chica, Panama 09' E320 Bluetec 77k (USA) 09' Hyundai Santa Fe Diesel 48k (S.A.) |
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Where can I access that? Is it accessible on the service CD?
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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles 06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion 19 Honda CR-V EX 61k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife |
#4
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The Pentosin CHF-11S Synthetic P/S fluid is the only replacement fluid recommended by MBUSA (the cars were originally shipped with non-synthetic fluid). W211 Power Steering Fluid Flush.pdf - BenzWorld.org Part numbers: Q1460001 (light yellow, non-synthetic) Q1320001 Pentosin CHF-11S (green, synthetic) MBUSA recommended (TSB: P-B-46.00/44 46) Last edited by MB_FanAddict; 11-11-2015 at 01:01 PM. Reason: Updated post |
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On all my cars, I change the fluid and filter(if there is one) upon purchase and then every 2 years/24,000 mi.
Just to keep things in perspective, I bought a 1980 240D last March. The power steering system operated perfectly, reservoir was at the F mark, with no leaks but when changing fluids/filters, I removed a 3 piece filter assembly from the reservoir. Mercedes went to a 1 piece type filter in the early 80's, so it was likely the original. Don |
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Does a W211 have a power steering filter? I didn't think they did, but if they do, someone show us where it is! Wouldn't mind doing mine because I doubt its been done before.
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68 280SL - 70 280SL - 70 300SEL 3.5 - 72 350SL - 72 280SEL 4.5 - 72 220 - 72 220D - 73 450SL - 84 230GE - 87 200TD - 90 190E 2.0 - 03 G500 Nissan GTR - Nissan Skyline GTS25T - Toyota GTFour - Rover Mini - Toyota Land Cruiser HJ60 - Cadillac Eldorado - BMW E30 - BMW 135i |
#7
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I've always been curious as to why MB moved away from the user-replaceable steering filter. Seems like such a good idea. As it's easy enough to design, I can only conclude that they no longer believe it to be necessary.
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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles 06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion 19 Honda CR-V EX 61k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife |
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I agree, and PS filters always make for a good, "get me to the free shipping minimum" item! For what its worth I just called NAPA - CHF11S in the Pentosin bottle is $19.99, $18 with the loyalty card. Called the dealer $25.20. So it looks like I'm going NAPA. Sometimes the dealer can beat NAPA on "exotic" fluids, or its the same price, and for the same price I like to think I'm fancy with the Silver and Blue bottle, but for like $7/qt I'll buy it in the generic bottle.
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68 280SL - 70 280SL - 70 300SEL 3.5 - 72 350SL - 72 280SEL 4.5 - 72 220 - 72 220D - 73 450SL - 84 230GE - 87 200TD - 90 190E 2.0 - 03 G500 Nissan GTR - Nissan Skyline GTS25T - Toyota GTFour - Rover Mini - Toyota Land Cruiser HJ60 - Cadillac Eldorado - BMW E30 - BMW 135i |
#9
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google found it. 2006 w211 Service Sheet - Documents
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Terry Allison N. Calif. & Boca Chica, Panama 09' E320 Bluetec 77k (USA) 09' Hyundai Santa Fe Diesel 48k (S.A.) |
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the filter for the powersteering is now incorporated into the black plastic reservoir mounted on the pump. You have to replace the tank to change the filter (like when changing the rack or worn pump)
the recommendation is to fill the reservoir with fluid and let it soak for about 15 minutes to prevent hydraulic blowout.
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2012 BMW X5 (Beef + Granite suspension model) 1995 E300D - The original humming machine (consumed by Flood 2017) 2000 E320 - The evolution (consumed by flood 2017) |
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When I changed my ATF, I also used my mityvac and pumped out the PS tank. Refilled with Pentosin fluid, ran engine a bit, re-vacuumed and refilled. Easy job! Wouldn't think it needs to be done more frequently then ATF change schedule every 40-50k.
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-- Chris '95 E300, 216k miles, Silver Surfer '05 E320 CDI, 138k miles '07 S550 4matic, 69k miles Gone but not forgotten: '76 300D, 350k miles?, SOLD in 1995 '75 240D, 300k miles, SOLD in 1991 |
#12
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__________________
14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles 06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion 19 Honda CR-V EX 61k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife |
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