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Car Forum / Mercedes-Benz Cars / April 2006

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1985 380SE 144K miles, Tachometer dead

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djb2000 - 03 Apr 2006 20:22 GMT
I bought a used 85 380SE with 144K miles on it this month - got it real cheap.
It runs and drives but not very well. I have read many posts in this forum
and they are very helpful. I'll put them to task soon. I would like some
advice about the tachometer though, it doesn't work at all. I've ordered a
maintenance manual from ebay but don't have it yet. Any recommendations about
troubleshooting the tachometer would be appreciated.

I'm told the car had been sitting up for about 3 years without use. I changed
the oil and transmission fluid - they were dirty.

Thanks,
Tiger - 04 Apr 2006 16:23 GMT
Is the fuel gauge working? the clock? If no, then it is the fuse.

If it is not the fuse, just buy a used speedo cluster from ebay and swap out
the tach/clock unit.
djb2000 - 04 Apr 2006 18:32 GMT
Tiger,
   Thank you, i'll search for the fuse when my maintenance manual arrives.
djb2000

>Is the fuel gauge working? the clock? If no, then it is the fuse.
>
>If it is not the fuse, just buy a used speedo cluster from ebay and swap out
>the tach/clock unit.
Tiger - 05 Apr 2006 21:43 GMT
Fuse is listed on the fuse box cover.
djb2000 - 05 Apr 2006 22:32 GMT
Tiger,

  Thank you for the help. I found the fuse, it looked OK but replaced it
anyway- but it didn't make a difference. The clock works fine, so the tach is
probably disconnected or defective.

  I discovered why I got the car so cheap, the odometer had been tampered
with. The car likely has over 200,000 miles on it. I did a carfax (after I
bought it) just on a hunch - buyer beware I guess. In 1999 it had 167,000
miles - sold at auction. Then it changed hands a few times. I'm not going to
persue it though - the car was for sale on consignment at a used car
dealership by a very old man. He probably bought it not knowing it had been
tampered with. Since I only paid $1200.00 for it and I got it running I think
I'll drive it for a while. Learned a lesson though.
 
djb2000

>Fuse is listed on the fuse box cover.
Richard Sexton - 07 Apr 2006 06:59 GMT
>tampered with. Since I only paid $1200.00 for it and I got it running I think
>I'll drive it for a while. Learned a lesson though.

Is the interior in REALLY GOOD shape?

Signature

  Need Mercedes parts?   http://parts.mbz.org
Richard Sexton       | Mercedes stuff: http://mbz.org
1970 280SE, 72 280SE | Home pages: http://rs79.vrx.net
633CSi 250SE/C 300SD | http://aquaria.net http://killi.net

djb2000 - 07 Apr 2006 09:51 GMT
Richard,
     The interior is in sad shape, unfortunately this car wasn't taken care
of in the last few years. I drove it to work yesterday, 35 miles one way in
heavy rush-hour traffic. It ran fair but has a vacuum leak somewhere and is
idling rough. I will probably tinker with it for a while. Nice smooth big-car
ride though.
David

>>tampered with. Since I only paid $1200.00 for it and I got it running I think
>>I'll drive it for a while. Learned a lesson though.
>
>Is the interior in REALLY GOOD shape?
Gogarty - 07 Apr 2006 12:54 GMT
>Richard,
>      The interior is in sad shape, unfortunately this car wasn't taken care
[quoted text clipped - 3 lines]
>ride though.
>David

Sounds like my car, 1981 300SD. Paid $1,500 seven years ago. Biiig mistake.
Discovered some time after we bought it that the odometer had been switched
out and replaced with a much newer one, probably out of a wreck. Today it says
195K. But the car is over 25 years old. I would say it has a minimum of 250K
on it but I suspect it is far higher than that given the shape the car was in.

1981 300SD "Der Klunker" ex Pimpmobile.
djb2000 - 07 Apr 2006 14:36 GMT
Gogarty,
    Yes, it would be nice to know everything about any used car. But in the
past couple of weeks I have discovered that tampering with the odometer or
changing it may be more common on expensive cars like Mercedes. I got lucky,
the engine seems to be if fair mechanical condition. The transmission is
slipping in 2nd gear a little. If I can drive it for 2 years without an
engine overhaul I'll be satisfied. I am making plans to overhaul the
transmission myself, I've found kits for about $200.00. I have some
experience with GM transmission overhauls. I discovered last night that the
air pump was rusted out internally. Seems the hose was cracked and had been
sucking in mosture. I disconnected it for now.

   How is the interior on your 300SD? Does everything work?
djb2000

>>Richard,
>>      The interior is in sad shape, unfortunately this car wasn't taken care
[quoted text clipped - 9 lines]
>
>1981 300SD "Der Klunker" ex Pimpmobile.
Gogarty - 07 Apr 2006 16:06 GMT
>Gogarty,
>     Yes, it would be nice to know everything about any used car. But in the
[quoted text clipped - 9 lines]
>
>    How is the interior on your 300SD? Does everything work?

Shucks, my car had all its defects hanging out had I the sense to see them.
But we did get a trip to Canada and one to Miami on the original engine and
transmission.

The interior was not in great shape but everything did work. But let me give
you a litany of what we had done to the car. The danger is that you sink so
much money into it you end up with no alternative but to pour more money into
it. Now, the car is stabilized and it is a magnificent vehicle. But under
the battered exterior shell it's practically a new car.

New suspension -- bushings, shocks, some parts -- all around.
New rims -- old ones were strictly garish and gaudy but cheap Pimpmobile. From
junk yard at $25 each.
Steering box -- $1,200.
Air conditioner.
New Radiator.
New brakes, including rotors, pads, hand brake, cylinder and reservoir.
New rebuilt transmission.
Engine transplant with good, not rebuilt, engine from junk yard.
Cruise control.
Sunroof failed and fixed.

Don't ask how much I have poured into it. I stopped counting long ago. But now
the only expenses are for periodic normal maintenance. And it really does have
the marvelous big car ride. We use top of the line Michelin tires, by the way.
djb2000 - 07 Apr 2006 20:15 GMT
Gogarty,
    I've read that the quality of tires makes a big difference in the ride
on these cars, sounds like you have been faithful to the old benz and now
it's paying off. I like to tinker with cars and had never owned a mercedes so
i decided to experiment. i don't have much in it -so, if the engine goes out
i'll probably just part it out and walk away from it.
    How much trouble was it to repair the sunroof? Mine is stuck.
djb2000

>>Gogarty,
>>     Yes, it would be nice to know everything about any used car. But in the
[quoted text clipped - 27 lines]
>the only expenses are for periodic normal maintenance. And it really does have
>the marvelous big car ride. We use top of the line Michelin tires, by the way.
Gogarty - 08 Apr 2006 01:21 GMT
>Gogarty,
>     I've read that the quality of tires makes a big difference in the ride
[quoted text clipped - 3 lines]
>i'll probably just part it out and walk away from it.
>     How much trouble was it to repair the sunroof? Mine is stuck.

We live in the city and park the car on the street. Doing the work myself is
not an option. I found an excellent shop that does top notch work at a fair
price and does not rip me off. He does all my work. If I recall,  fixing the
sunroof cost about $700.

Yes, quality of tires makes a huge difference. The Michelins cost about $125
each. But they last and last, except when you get too close to the curb and
cut up the sidewall. As the car runs along over uneven surface the tires just
go schlurp schlurp as they sort of swallow up the bumps. The ride and handling
on this car puts most sporty cars to shame.
Richard Sexton - 15 Apr 2006 19:28 GMT
>Gogarty,
>     I've read that the quality of tires makes a big difference in the ride
>on these cars, sounds like you have been faithful to the old benz and now
>it's paying off.

What he said.

A couple of years ago I found a almost-not-worn set of the correct size
Michelen MXV4's for $40 in a local garage sale. These are the tires
I prefer to use an dmy last set cost me $180 each plus tax. They're
nice.

Recenly I've been getting a WOGGA WOGGA WOGGA noise. The number of things
it could be raced through my mind. Half shafts? Again? Thrust rods?

Having learned this lesson once I changed the tire at the corner that
seems to be making the noise.

Now it's fixed. I mean it's really smooth.

The track/brake/thrust rods thignies do need changing at that corner
and what happens is a belt separates in the tires, causes a massive imbalance
and this causes the track rods sound like a jackhammer.

I realy live MXV4's but in the last 4 years 10 out of 12 have died prematurely
with belt separations. I don't mind when I get them for $10 each I guess.

Signature

  Need Mercedes parts?   http://parts.mbz.org
Richard Sexton       | Mercedes stuff: http://mbz.org
1970 280SE, 72 280SE | Home pages: http://rs79.vrx.net
633CSi 250SE/C 300SD | http://aquaria.net http://killi.net

ws - 15 Apr 2006 10:03 GMT
<snip>

> I realy live MXV4's but in the last 4 years 10 out of 12 have died prematurely
> with belt separations. I don't mind when I get them for $10 each I guess.

That's really high. Aren't you dicing with safety? According to my local
tire shop, most tyres have a "sell-by" date, as (according to him) the
rubber would harden and crack, leading to problems like what you described.

The figures he gave are "2-3 years even if the tread wear indicator is
OK". I'm not sure what part of this is vested interest or real.

Any comments or advice, people?

Regards,
WS
Martin Joseph - 16 Apr 2006 17:31 GMT
> <snip>
>
[quoted text clipped - 10 lines]
>
> Any comments or advice, people?

I don't like Michelins, and would never buy used tires of any kind
(unless I was desperate for a temporary fix).

New tires are a cheap investment IMO and come with a warranty.  Paying
$400-$500 instead of $180 is worth it for a new set of rubber. I am
running Dunlop's on my 190e and have been happy with the ride/noise
ratio on these (A2 sport). Don't think they would be so great on a
bigger/heavier car though.

Marty
Richard Sexton - 19 Apr 2006 18:15 GMT
>I don't like Michelins, and would never buy used tires of any kind
>(unless I was desperate for a temporary fix).

Your tires are only new in the store. The day after you you drive
on them, they're used. You're saying the supposdly good tires on
your car wouldn't work on mine?

Obviously you don't want a defective used tires, but it if has
tread, looks and feels new and can be balanced on the car properly
there is very little difference between that and a new one.

>New tires are a cheap investment IMO and come with a warranty.  

Which is fairly worthless. A six month old defective tire got me
a $40 rebate on a new $180 one. Pass.

I've used used tires on all my cars for about 5 years. If you're carefull
and know what you're doing you can save a bundle. FWIW the used tire market
is a several billion dollar a year business.

Signature

  Need Mercedes parts?   http://parts.mbz.org
Richard Sexton       | Mercedes stuff: http://mbz.org
1970 280SE, 72 280SE | Home pages: http://rs79.vrx.net
633CSi 250SE/C 300SD | http://aquaria.net http://killi.net

Richard Sexton - 19 Apr 2006 18:10 GMT
><snip>
>
[quoted text clipped - 4 lines]
>tire shop, most tyres have a "sell-by" date, as (according to him) the
>rubber would harden and crack, leading to problems like what you described.

Those are caandian dollars, about 15% less than us dollars. Ans stuff is more
expensive here.

>The figures he gave are "2-3 years even if the tread wear indicator is
>OK". I'm not sure what part of this is vested interest or real.

Depends how they're stored.

Signature

  Need Mercedes parts?   http://parts.mbz.org
Richard Sexton       | Mercedes stuff: http://mbz.org
1970 280SE, 72 280SE | Home pages: http://rs79.vrx.net
633CSi 250SE/C 300SD | http://aquaria.net http://killi.net

Richard Sexton - 15 Apr 2006 19:21 GMT
>>Richard,
>>      The interior is in sad shape, unfortunately this car wasn't taken care
[quoted text clipped - 11 lines]
>
>1981 300SD "Der Klunker" ex Pimpmobile.

Klunking pimpmobile owners of the world unite!

(I got my 300SD 7 years agio for $1850; it looks like a.s but now has about half
a million miles on it)

Signature

  Need Mercedes parts?   http://parts.mbz.org
Richard Sexton       | Mercedes stuff: http://mbz.org
1970 280SE, 72 280SE | Home pages: http://rs79.vrx.net
633CSi 250SE/C 300SD | http://aquaria.net http://killi.net

Neil A. Miller - 13 Apr 2006 13:55 GMT
Hi

I changed a bulb in my 560SEL instruments once and accidently pulled the
connector (2pin I think) of the back of the tacho. If yours has been clocked
someone might have
done the same when removing the instrument pod. It's an easy job to pull the
pod and check.

Cheers

Neil
UK

1998 C240T
1998 SL500
1950 Land Rover

> I bought a used 85 380SE with 144K miles on it this month - got it real cheap.
> It runs and drives but not very well. I have read many posts in this forum
[quoted text clipped - 7 lines]
>
> Thanks,
djb2000 - 14 Apr 2006 16:56 GMT
Thanks Neil
  I'll try that this weekend

>Hi
>
[quoted text clipped - 18 lines]
>>
>> Thanks,
John Glover - 14 Apr 2006 23:44 GMT
Also check that the printed tracks from the plug into the instrument are not
damaged due to the cover wearing them.it's a simple repair to bridge any
damaged tracks.
--

johnaglover@Xbtinternet.com

Please remove the X for email

> Thanks Neil
>   I'll try that this weekend
[quoted text clipped - 25 lines]
>>>
>>> Thanks,
 
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