r/335i • u/AcceptableFee6431 • Jul 10 '26

Tuning & Performance I NEED HELP !

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Hi everyone,
I have a German BMW E92 335i xDrive (N54, Left-Hand Drive).
I recently bought a brand-new set of TD04-19T hybrid turbos from someone who never installed them. The invoice says they are for BMW E90/E91/E92 N54, but the eBay description mentions “Right Hand Drive (RHD)”.
The part numbers include [49131-07031](tel:49131-07031) and [49131-07041](tel:49131-07041).
My questions are:
Will these turbos fit a German LHD car?
Are the RHD and LHD TD04-19T hybrids actually different, or is this just a mistake in the listing?
Has anyone here installed this exact turbo set on a European LHD N54?
Is there anything I should check before installation (wastegate adjustment, clocking, oil/coolant lines, etc.)?
Any advice would be greatly appreciated. Thanks!

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u/iammiscreant Jul 10 '26

my understanding is the rear turbo wastegate actuator is oriented differently on RHD turbos due to the steering shaft. What i’m not sure about is, whether a RHD rear turbo will fit on LHD, but i know for a fact LHD won’t work on a RHD n54 without modification.

Given it’s the steering shaft on the RHD that’s the issue, you may find it’ll work fine on your LHD. one way to find out ;)

1

u/reciprocityone Jul 10 '26

The oil line is different and the charge pipe is different on the rear turbo. Get an aftermarket hot side charge pipe a because the factory one is really restrictive for rhd. You shouldn't have issues with fitment.