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Old 07-14-2001, 11:16 AM
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I just bougth a Topsider. I am probably being a spastic about this, have wasted enough time and figured I would just ask... :-)

I cannot get Topsider to develop sufficient vacuum. I have checked and rechecked all seals (all two of them!) on the caps and they appear to be fine.

I pumped 40 times with the clamp shut firm, and inserted the nozzle into a new bottle of oil (just to see if I could get the thing to work). Oil began to flow half way up the tube and then began to drop again. Only continuous pumping would reverse the oil flow.

Is there a common mistake I am making (the device seems to be straightforward- but hey!)? Are there any known problems with the device?

Finally, with ambient temperature in the 70s, how long should the engine be idled, on average, to sufficiently raise the oil temperature?

Thanks much in advance

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Old 07-14-2001, 11:56 AM
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Thats very interesting,I too was poised to buy one of these!
I recall that some weeks ago Mercedesshop advertised an updated, modified model. Is yours such a model?
It sounds like a seal problem, should they be lubricated?
Keep us posted please.
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Old 07-14-2001, 01:07 PM
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Check under both lids to make sure the rubber seals are postioned correctly. You might try wetting your finger tip with fresh oil and applying a thin film on the seals as well. Tighten with Gorilla grip (as much as possible with your hands) but not with a tool as you could distort the lid.

Other than that, check the areas where the clear hose connect, make sure they are tight, if you can twist these easily you may need to apply moisture (soap?) as well.

Only other thing I can think of is possibley a defective pump?
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Old 07-16-2001, 09:25 AM
sixto's Avatar
smoke gets in your eyes
Join Date: Jun 2000
Location: Eastern TN
Posts: 20,819
I had the same problem when I first got my Topsider. It turns out the nipple that connects to the suction hose wasn't properly crimped to the disk. Topsider sent me a new nipple and it's crimped to the disk but good. No problems since.

91 300SE
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Old 07-16-2001, 01:32 PM
Registered User
Join Date: Jun 2000
Location: Near Williamsburg, Virginia
Posts: 364
Mine was leaking in the same place ... where the nipple is crimped to the disk. I applied silicone windshield sealer to the joint, let it set up overnight and it has worked fine since. Except I used it on HOT oil once and caused the plastic tubing to permenantly collapse. So I replaced the flattened tubing. I do enjoy using the topsider.

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Old 07-16-2001, 02:36 PM
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I Feel For All of You

Brothers of The Benz, All
It appears there are problems developing in these Suckers!
For those who want to do thier oil and filter changing from under the hood, GO/TO
You'll find the "El Cheapo" oil changer and at a significant reduction in price for DIYers.
Happy Trails Beep Beep from The Spiderman in Houston!!!
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Old 07-17-2001, 06:18 AM
Registered User
Join Date: Oct 1999
Posts: 1,562
No problems to report with my TopSider- 3 years (knock on wood)

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