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C250 boost gauge installation

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Old Apr 12, 2025 | 08:56 AM
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2013 w204 c250 coupe & 2001 Dodge Ram 2500 24v Cummins
Cool C250 boost gauge installation

If you have a c250 and are interested in installing a vacuum/boost gauge check out my latest YouTube video!


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Old Apr 12, 2025 | 11:28 AM
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2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
How about my SL400?
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Old Apr 12, 2025 | 11:30 AM
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By the way, something is wrong with your link. This is what I get when I click on it.


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Old Apr 12, 2025 | 11:52 AM
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Originally Posted by JettaRed
By the way, something is wrong with your link. This is what I get when I click on it.

@JettaRed - Thank you for this! I just re-entered my YouTube link, it (should) work now!

And I think we can figure something out for your SL400

Last edited by antboii; Apr 12, 2025 at 11:59 AM.
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Old Apr 12, 2025 | 04:17 PM
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Originally Posted by antboii
@JettaRed - Thank you for this! I just re-entered my YouTube link, it (should) work now!

And I think we can figure something out for your SL400
I was considering removing the analog clock for someplace to put the gauge. I just couldn’t decide on where to tap in for the manifold pressure.

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Old Apr 12, 2025 | 10:18 PM
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Originally Posted by JettaRed
I was considering removing the analog clock for someplace to put the gauge. I just couldn’t decide on where to tap in for the manifold pressure.

@JettaRed - I agree, that would be a slick spot for a boost gauge!

From my research you would want to tap into a vacuum line after the throttle body. My gauge kit came with a 'T' fitting but, I did not need to use that because of the ModalWork intake manifold tap.

how accessible is the throttle body? are you able to see any vacuum lines that run to it from the manifold?




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Old Jun 6, 2025 | 09:40 AM
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Originally Posted by JettaRed
I was considering removing the analog clock for someplace to put the gauge. I just couldn’t decide on where to tap in for the manifold pressure.

@JettaRed - any interest in installing a boost/vacuum gauge on your SL? If you can find a gauge mount it shouldn’t be too bad of an install.
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