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#1
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SDL high speed vibration
Hello
I have a 87 300SDL with 188,000 miles on it. Recently went on a 1,500 miles trip which consisted of 1,300 miles of interstate roads that I drove 70-80 mph on. I noticed that speeds of 70 or above I got a vibration in the car, felt mostly in my seat and a little in the steering wheel, I could take my hands off the wheel and it would track good down the road. I drove the 700 miles down to my destination and had the wheels balance then rotated, this did not stop the vibration on the return trip. Here is a list of front suspension parts that have been changed within the last couple years. lower ball joints steering damper tie rod assem idler arm drag link shocks tires Most of my driving has been in the range of 55-65 mph and I feel no vibration at those speeds. Anyone here have an idea of what to look for?? |
#2
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possibily driveshaft balance?
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83 300d euro 85 944 |
#3
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What kind of vibration? Fast slow? Buzzing? Any sounds?
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http://superturbodiesel.com/images/sig.04.10.jpg 1995 E420 Schwarz 1995 E300 Weiss #1987 300D Sturmmachine #1991 300D Nearly Perfect #1994 E320 Cabriolet #1995 E320 Touring #1985 300D Sedan OBK #42 |
#4
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^^
That's a tough one. No sounds, just a slight side to side motion thats noticeable in the seat and a little in the steering wheel, for the most part it was constant at those speeds. I never tried going any faster. Every once in awhile when I changed lanes it would stop. I thought maybe it was just the road surface, but it's just too constant to be that. I have checked the flex disc and they appear in good shape. |
#5
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this sounds like a bad tire to me.
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#6
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I tend to agree however my experience with bad tires has always been EXTREMELY noticeable at low speeds.
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http://superturbodiesel.com/images/sig.04.10.jpg 1995 E420 Schwarz 1995 E300 Weiss #1987 300D Sturmmachine #1991 300D Nearly Perfect #1994 E320 Cabriolet #1995 E320 Touring #1985 300D Sedan OBK #42 |
#7
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Get your tires balanced. That would be my first step before proceding further.
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1989 300E 144K |
#8
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The tires have less then 8k, new last summer "06"
I had the tires balanced and rotated at the end of the 700 mile drive, there was no difference in vibration on the return trip. |
#9
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I'll be putting the snows back on my daughters car shortly (300D) when I do that I'll switch her wheels which are original 126's on to the SDL
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#10
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I've been fighting the same problem. First, I had a bent rim (actually 3), secondly, tie rod ends, then alignment, and when I got the car, I had the front end rebuilt, along with new tires....
I still think that my problem is tires...
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87 300SDL - 215K Miles !! 99 F-350CC Dually PSD - 190K 86 300SDL - 189K All on B-100 |
#11
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Quote:
Find a perfectly smooth road. Drive the vehicle at exactly 7-8 mph. If you find your head swaying from side to side...........the tire(s) are out of round. If you have Goodyear tires.........or any off brand manufactured by Goodyear.........you can dispense with the above test and just replace the tires. |
#12
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W126's are notorious for picking up any imperfections in the tire - improper inflation will even cause some erratic handling.
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BENZ THERE DONE THAThttp://www.peachparts.com/shopforum/...c/progress.gif 15 VW Passat TDI 00 E420 98 E300 DT 97 E420 Donor Car - NEED PARTS? PM ME! 97 S500 97 E300D 86 Holden Jackaroo Turbo D 86 300SDL (o\|/o) |
#13
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I have a 1984 380 SE it sat for 2 years on new rubber(Remington Premier Something or other SBR's )I have a vibration at about 70 or so also. The tires were brand new 2 years ago and not driven at all, maybe from the tire shop home. I know tires flat spot if they set for an extended length of time(radials or not). I do not know if the flat spots ever recover.
I suspect that the tires need to be balanced and rotated and will attend to that tomorrow. I feel the Vibration in the steering wheel, but not the Shifter(because it's not connected to the tranny directly.) Vibration is transferring to the car body as my rear view mirror is toast(sun baked and the actuator broken out)vibrates a lot also. I also know that the spare Mag wheel is bent per PO. Now i wonder if any or all the other four are bent too. Any suggestions?
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1986 Euro 500SEC "RUF" 9:1CR, "Rose" 1985 Euro 500SEC Cabriolet AMG Widebody 1982 Euro 500SEL "Blue" 2001 Texas Heeler (Aussie/Queensland X) "Sulphie", 2012 Queensland Red Heeler "Squeak" Best dogs I've ever had. |
#14
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Read this thread.........specifically post #11.
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#15
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Have you checked the engine shocks? I had a similiar symptom and found that the passender side engine shock had loosened and was not doing its job as a result. made a huge difference at idle and higher RPM travel on the Hwy.
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