The engine was built up with forged Mahle pistons and forged Pro Engineering rods, all new bearings, seals, gaskets, plus miscellaneous other little upgrades
Reviews of Mahle pistons
27 votes
9 reviews
Not true, many VW 4cyls came with forged cranks and pistons, the slugs in my TT are Mahle and known to handle over 400hp easily, the only things you need for a 1.8T to be basically bulletproof are forged rods and a new timing belt kit.
Ya, I recommend Mahle's for most builds. In fact we like them so much that we had a some custom made on a heavier duty forging, with a heavier duty wrist pin- so we can use them on bigger power builds then the standard PowerPak pistons which are actually somewhat light duty.
get a set of mahle 4032 alloy pistons unless you're going for very high power levels. you'll barely hear bad things from 2618 alloy piston owners, but 2618's have been known to piston-slap on cold starts, depending on the tolerances of the build.
the stock pistons are REALLY strong, the best piece of hardware you can get on a race engine is Mahle, the stockers are Mahle and forged...
those Mahle pistons are badass i wish I could afford a set i'd be drivin a 2.0t already
The AEB's you supplied for my first motor held up fine for 50K+ miles. And the definitely saw 8K more than a few times.
I'll stick with the $200 Mahles.
I already have a set of 83mm Mahle's for a 9A (20mm piston pin) and I'd like to use them since I feel my ABA block needs a cleanup job.
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What we know about Mahle pistons
The brand is registered in Germany. Official website: http://www.mahle.com/.
In March 2026, PartReview does not yet have a formed opinion of Mahle pistons. You can help by adding a review for Mahle pistons.
Currently there are 9 reviews and 27 votes. Average rating — 4.7 out of 5. Vote balance: 27 up, 0 down.
Users also evaluated the qualities of Mahle pistons:
- Power - engine feels weak, especially under load - rated positively. 4.8 points out of 5.
- Smoke - blue smoke indicates oil getting past pistons - no rating yet
- Noise - deep knocking under heavy throttle is a danger sign - rated ambivalently. 3 points out of 5.
Pistons Mahle in car-specific ratings
See which car brands and models owners choose Mahle pistons for. Below are car-specific ratings where this part is in the Top-3:
- Mahle ranked #1 in pistons ratings for: Volkswagen Golf .