Reviews of OEM BMW catalytic converter

PR Score ?

Not enough data to calculate the score

Missing 8 reviews

6 votes

Average rating ?

4.5

Smell:

3.0

Power:

5.0

2 reviews

Description

OEM BMW

Germany

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OEM BMW › Catalytic converter

spike23t 29 Oct 2025, 13:31

Smell:

Rating 4.0

CAT aging is a real issue with N53s even at this mileage. Leaking injectors can cause damage to cats + some of these can burn oil especially when revved. Mine does like 1L every 5000km which seems fine according to BMW.

Pros: oil consumption seems fine

Cons: CAT aging, oil burning

Vehicle: BMW

Mileage: 5000 km

OEM BMW › Catalytic converter

ConGonDon 23 May 2021, 08:01

Power:

Rating 5.0

I have a 530d manual and with a simple decat, egr blank and remap it's faster than a 530i.

Pros: faster than 530i

Vehicle: BMW

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What we know about OEM BMW catalytic converter

The brand is registered in Germany.

In March 2026, PartReview does not yet have a formed opinion of OEM BMW catalytic converter. You can help by adding a review for OEM BMW catalytic converter.

Currently there are 2 reviews and 6 votes. Average rating — 4.5 out of 5. Vote balance: 6 up, 0 down.

Users also evaluated the qualities of OEM BMW catalytic converter:

Power - car struggles at higher speeds, making passing difficult - rated positively. 5 points out of 5.
Rattle - metallic rattling from the exhaust, indicating a broken core - no rating yet
Smell - strong sulfur/rotten-egg odor, pointing to catalyst trouble - rated ambivalently. 3 points out of 5.

Catalytic converter OEM BMW in car-specific ratings

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