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Tranny overheat on track? Wiestec tranny pan?

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Old Sep 11, 2017 | 03:31 PM
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Tranny overheat on track? Wiestec tranny pan?

Dear fellow people who track their cars, any of you have experience where shifting up from 3 - 4 after a couple of laps would be really slow? At first I thought it was only on my car because of the extra power, but i have a friend who has the same issue completely stock. Apparently it is because of the tranny overheating, can anyone confirm or deny?

On a side note, anyone have the weistec tranny pan? Comments?
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Old Sep 11, 2017 | 05:34 PM
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Yup. Transmission gets grumpy and slow during long track sessions. The Weistec TCU/VB upgrade helps but sadly they don't offer it anymore. I'll be looking to upgrade my trans cooler over the winter, so stay tuned for details.

I have the Weistec trans pan. I don't think it does much for temps, but I like the extra capacity as insurance.
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Old Sep 11, 2017 | 05:40 PM
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Originally Posted by BLKROKT
Yup. Transmission gets grumpy and slow during long track sessions. The Weistec TCU/VB upgrade helps but sadly they don't offer it anymore. I'll be looking to upgrade my trans cooler over the winter, so stay tuned for details.

I have the Weistec trans pan. I don't think it does much for temps, but I like the extra capacity as insurance.
Doesn't the 44o already come with a bigger trans rad? You planning to upgrade over that? So you think worth getting the pan or save my $$?
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Old Sep 11, 2017 | 05:51 PM
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Originally Posted by Cli63
Doesn't the 44o already come with a bigger trans rad? You planning to upgrade over that? So you think worth getting the pan or save my $$?
Nope, 44O only has bigger oil coolers.

I think the pan is good insurance with 50% more fluid capacity, and the cost is reasonable enough. It's cheaper than a new trans, and you have to believe that it can only be helping.
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Old Sep 11, 2017 | 06:45 PM
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CLK 63 AMG Black Series, A45 AMG
I have Weistec Transmission pan on my CLK BS,
It had 1.8L of oil which is approximately 20-25% more than stock
Without Gearbox oil temp on the cluster, impossible to know how it improve cooling.
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Old Sep 11, 2017 | 06:50 PM
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Originally Posted by Tex5
I have Weistec Transmission pan on my CLK BS,
It had 1.8L of oil which is approximately 20-25% more than stock
Without Gearbox oil temp on the cluster, impossible to know how it improve cooling.
Anyone tried installing a trans temp gauge? Shouldn't be that hard?
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Old Sep 11, 2017 | 06:59 PM
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CLK 63 AMG Black Series, A45 AMG
Gearbox oil temp is available in MB SDS, so perhaps it can be activated on cluster in dev mode, but I do not have the procedure
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Old Sep 11, 2017 | 09:02 PM
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Larger fluid capacity will only increase time it takes to overheat not solve the heat problem. The weistec pan has -8 fittings for an additional cooler that could be mounted under the trunk with a fan on it. That would likely solve the issue.
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Old Sep 11, 2017 | 09:56 PM
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From: Boston
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Originally Posted by Merc63
Larger fluid capacity will only increase time it takes to overheat not solve the heat problem. The weistec pan has -8 fittings for an additional cooler that could be mounted under the trunk with a fan on it. That would likely solve the issue.
Do you know where I can get said cooler?
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