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TDI 101 Got a simple/basic TDI question? Are you a newbie (new to the forums). Feel free to post your question here.

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Old October 31st, 2018, 05:21   #31
eddieleephd
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Originally Posted by Tdijarhead View Post
Mityvac works wonders.

They are both small black actuators, one is behind and below the tandem pump the other behind and below the egr.
Thanks for chiming in. Do all PD have the internal flaps? As I said earlier I know some do, do they all?
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Old October 31st, 2018, 06:06   #32
oilhammer
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All three of the 4cyl PDs sold here use different intakes and EGR cooler setups.

The BEW is the only one with the twin intake ports, so it is the only one with that vacuum servo.

The BEW and BRM both have EGR cooler changeover flap servos, but the EGR coolers themselves are very different. BEW uses a Modine waffle style cooler, BRM uses a Valeo log style cooler.

BHW uses a log style Valeo EGR cooler, with no changeover flap. The BHW's intake is the simplest and least problematic. It also is the only PD that got a better Garrett turbocharger.

The BRM's EGR coolers fail because they leak at the changeover flap shaft, which is intagral.

The BEW's EGR coolers fail usually from a botched recall job where the bracket and fasteners get left off, which also causes the pipe to crack.

BHW EGR coolers rarely fail, but when they do, they just pump coolant into the intake/exhaust and cause a James Bond smoke screen behind the car.

However, ALL the PDs use an electric actuated EGR valve, and they ALL can suffer from the same hiccup driveability issue if that valve is not working properly. The BHWs actually had an early software update to address this.
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Old November 1st, 2018, 15:25   #33
eddieleephd
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However, ALL the PDs use an electric actuated EGR valve, and they ALL can suffer from the same hiccup driveability issue if that valve is not working properly. The BHWs actually had an early software update to address this.
Interesting, guess the valve is the first check whenever a PD hiccup situation is involved.
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Old November 7th, 2018, 10:55   #34
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UPDATE:

Even after the new EGR was installed, It still has a "slight" ever so subtle hesitation when driving...I will check the other things listed but its not too noticeable driving the car this way and my previous EGR was pretty clean honestly!
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Old November 7th, 2018, 16:14   #35
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Don't know if the bew turbo has the same issue as the brm, someone more knowledgeable will chime in. if so, search on the zip tie mod (check myturbodiesel.Com as well.
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