W123 300D Eleven most common issues - Page 4 - PeachParts Mercedes-Benz Forum

rluhr · #46 08-09-2010, 02:40 PM

1984 300D Turbo

#1. Engine will not shut off - NO
#2. Central locking not working. - SLOW, but it works
#3. Engine won't start. - NO
#4. Oil leaks. - NO
#5. Floor wet. - NO
#6. Hood hinges stiff or broken. - NO
#7. Transmission shifting strange. - YES, but only when cold.
#8. Broken Air cleaner mount and/or bracket. - NO
#9. Collapsed engine mounts. - NO
#10. Worn out steering/suspension parts. - YES, torn rubber boots on ball joints, tie rod ends, 1.5" play in steering.
#11. Ignition key won't turn. NO

But I'd add a few common issues to the list:

#12. Odometer no longer turning - YES
#13. Tachometer broken - NO
#14. Stuck or broken power rear windows - NO, but starting to "chatter"
#15. Dim instrument cluster lights - YES
#16. Center dash vents stuck shut (no air) - YES
#17. Interior wood trim on glove box/dash loose - YES
#18. A/C dead. - YES, fixed.

lefrisbee · #47 08-09-2010, 04:39 PM

#1. Yep - a couple of times due to various vacuum leaks
#2. Yep, same times as #1
#3. Sometimes on really cold mornings.
#4. Rear main seal :/
#5. Yes!! It's driving me crazy. Front and rear left-side carpets.
#6. Not broken, just a little wonky. So yeah.
#7. Yeah, had to replace the tranny a while back due to shifting issues.
#8. Never!
#9. Of course.
#10. I guess shocks and axles go under this. Does the cruise control system?
#11. No!

9/11. Not bad. I'm a little confused about #8 though - is that a common issue?

EDIT:

I just noticed these. Another good few common problems.

#12. Hasn't happened to me yet.
#13. Yes!! This also drives me crazy. I'm never sure what my engine is up to.
#14. My right rear window is failing.
#15. Dear God yes. I'm ordering some LEDs soon to fix this though!
#16. No.
#17. Was an issue; I fixed it with some glue and a little bit of my time. The cracks are a lot more annoying since they're harder to fix.
#18. I haven't had any big problems with my AC.

I'm shocked that "cracked dash" isn't on this list. It has to be in the top 20.

tankowner · #48 08-09-2010, 07:27 PM

Quote:

Originally Posted by whunter

How many have you had?

#1. Engine will not shut off
#2. Central locking not working.
#3. Engine won't start.
#4. Oil leaks.
#5. Floor wet.
#6. Hood hinges stiff or broken.
#7. Transmission shifting strange.
#8. Broken Air cleaner mount and/or bracket.
#9. Collapsed engine mounts.
#10. Worn out steering/suspension parts.
#11. Ignition key won't turn.

#1 - Yes, with everything else, I haven't fixed this one yet.
#2 - Yes, surely related to #1, haven't gottent there yet.
#3 - No, but surprising.
#4 - Well, the pan is damp on the outside, but it doesn't drip.
#5 - No, but I am not sure why not.
#6 - No.
#7 - Manual, replaced all clutch components, seems to be good.
#8 - Fixed.
#9 - Fixed.
#10 - Passenger side done, on to the driver side.
#11 - No, thank goodness.

pschmidt · #49 08-10-2010, 09:59 AM

#1. Engine will not shut off. Yes, replaced vacumm hose I knocked off and fixed it
#2. Central locking not working. No
#3. Engine won't start. Yes checked GP system and found loose screw holding 50A fuse. Tightened screw work great
#4. Oil leaks. Oil seperator check valve was missing. Replaced it.
#5. Floor wet. No
#6. Hood hinges stiff or broken. No
#7. Transmission shifting strange. Yes, Vacumm system not adjusted correctly
#8. Broken Air cleaner mount and/or bracket. No
#9. Collapsed engine mounts. Haven't checked
#10. Worn out steering/suspension parts. Next project after Charging and A/C
#11. Ignition key won't turn. No

hheynow · #50 08-10-2010, 10:37 AM

Quote:

Originally Posted by whunter

How many have you had?

#1. Engine will not shut off
#2. Central locking not working.
#3. Engine won't start.
#4. Oil leaks.
#5. Floor wet.
#6. Hood hinges stiff or broken.
#7. Transmission shifting strange.
#8. Broken Air cleaner mount and/or bracket.
#9. Collapsed engine mounts.
#10. Worn out steering/suspension parts.
#11. Ignition key won't turn.

#1, #2, #4, #5, #7, #9, #10
Seven out of eleven

Rest assured that all seven have since been dealt with and fixed.

vahe · #51 08-10-2010, 12:40 PM

#1. Engine will not shut off, THIS HAS HAPPENED MANY TIMES
#2. Central locking not working. THE HALLMARK OF ANY AND ALL MERCEDES CARS, SOONER OR LATER THEY WILL FAIL
#3. Engine won't start. GENERALLY NOT AN ISSUE IF WELL MAINTAINED
#4. Oil leaks. BIG TIME WITH MY 300SD AND E320, none with my 240D
#5. Floor wet. YES
#6. Hood hinges stiff or broken. NO
#7. Transmission shifting strange. YES WITH MY 300SD
#8. Broken Air cleaner mount and/or bracket. YES WITH MY 300SD
#9. Collapsed engine mounts. YES WITH MY 300SD
#10. Worn out steering/suspension parts. YES WITH MY 300SD
#11. Ignition key won't turn. NO.

Vahe

Ya Mar · #52 08-13-2010, 12:34 AM

#1. Engine will not shut off - YES
#2. Central locking not working. - YES
#3. Engine won't start. - YES
#4. Oil leaks. - YES
#5. Floor wet. - NO
#6. Hood hinges stiff or broken. - NO
#7. Transmission shifting strange. - NO (manual transmission)
#8. Broken Air cleaner mount and/or bracket. - NO
#9. Collapsed engine mounts. - YES
#10. Worn out steering/suspension parts. - YES
#11. Ignition key won't turn. - NO

tbomachines · #53 08-13-2010, 12:41 AM

#12 = rust!

85chedeng300D · #54 08-13-2010, 06:12 PM

Quote:

Originally Posted by whunter

How many have you had?

#1. Engine will not shut off
#2. Central locking not working.
#3. Engine won't start.
#4. Oil leaks.
#5. Floor wet.
#6. Hood hinges stiff or broken.
#7. Transmission shifting strange.
#8. Broken Air cleaner mount and/or bracket.
#9. Collapsed engine mounts.
#10. Worn out steering/suspension parts.
#11. Ignition key won't turn.

#1. Engine will not shut off. when first acquired the car. fixed and replaced leaky rubber vacuum connectors.

#2. Central locking not working. when first acquired the car. fixed and replaced fuel door lock actuator.

#3. Engine won't start. two winters ago, new set of glow plugs fixed the issue.

#4. Oil leaks. front and rear main seal. cylinder head gasket is also leaking antifreeze at the rear of the engine, #5 cylinder

#5. Floor wet. when it pours

#6. Hood hinges stiff or broken. stiff

#7. Transmission shifting strange. every now and again, but still can be tweaked into tolerable shift characteristics.

#8. Broken Air cleaner mount and/or bracket. bracket was replaced and now the rubber mounts keep breaking apart

#9. Collapsed engine mounts. replaced engine mounts 3 years ago

#10. Worn out steering/suspension parts. upper control arms, bushings, and ball joints replaced 4 years ago. steering gearbox adjusted

#11. Ignition key won't turn. replaced ignition lock housing, assembly and tumbler 3 years ago as preventive maintenace, thanks to MercedesShop Forum

ROLLGUY · #55 08-22-2010, 09:29 PM

How about posting a repair link to each of these problems so they can be easily found? Having to weed through many posts to find a fix is quite time consuming.

rluhr · #56 01-23-2011, 06:58 PM

This thread is like an evil curse. I already experienced problems #7 and #10. But since I posted in August, I've had problems #2, #5, #8 and #9 happen.

#2. Central locking not working. Vacuum leak in "locking" side

#5. Floor wet. Bad windshield seal -- new part on order

#8. Broken Air cleaner mount and/or bracket. Just broke two weeks ago -- part on order

#9. Collapsed engine mounts. Half-collapsed, this is on the "upcoming repairs" list

Please don't mention any other common issues, as my car apparently reads this thread...

skittles · #57 01-24-2011, 11:27 PM

Quote:

Originally Posted by whunter

How many have you had?

#1. Engine will not shut off Once, but simply re-attached vacuum hose
#2. Central locking not working. Yes, currently not working
#3. Engine won't start. Yes, after filter change (air) and when I had bad glowplugs
#4. Oil leaks. Yes, oil pan gasket and oil cooler main leaks
#5. Floor wet. Yes
#6. Hood hinges stiff or broken. One hinge bent a little
#7. Transmission shifting strange. Yes, but actually turned out to be a fuel delivery problem and not a transmission problem.
#8. Broken Air cleaner mount and/or bracket. No
#9. Collapsed engine mounts. Yes, just had mine replaced - like a new car now.
#10. Worn out steering/suspension parts. Yes
#11. Ignition key won't turn. No

Answers in blue above

casioqv · #58 01-24-2011, 11:35 PM

Quote:

Originally Posted by whunter

How many have you had?

LOL, I've seen many W123s that suffered from all 11 plus 20 gallons of Bondo. That's what I get for looking at "great condition" 300TDs for $1000 on Craigslist.

Zacharias · #59 06-02-2011, 04:36 PM

Wow I should take a suitable pic of my Coupe and do in-pic captions with callouts to each problem area. I can include the bondo one too, no doubt....

ROLLGUY · #60 06-02-2011, 08:51 PM

There may be more, as I don't remember seeing "exhaust hanger donuts" on the list. This is a typical repair, and I have replaced all 4 on practically every 'Benz I have owned. I replace 3 with the standard rubber units, and the fourth with one that has a circle of wire rope molded in it. That way, the exhaust system will never drag on the ground (unless the metal hook breaks).