Wiesmann Engine Damage — we know your engine.
Every Wiesmann with a combustion engine runs on a BMW powertrain — from the M54 straight-six in the MF30 to the S85 V10 in the GT MF5. These are exactly the engines we’ve been overhauling for years, day in, day out. Bodywork and upholstery we leave to the Wiesmann specialists. The engine is our job.
Important: Replacement engines are practically unavailable on the market for Wiesmann engines. Overhauling the original engine is almost always the only — and most value-stable — option.
Not a Wiesmann specialist — a BMW engine specialist.
We’ll say it plainly: the GRP bodywork, upholstery and Wiesmann-specific electrics belong in the hands of the few Wiesmann workshops. But the engine in your Wiesmann is BMW mass-production technology — and we strip down, measure and overhaul BMW engines every single day. From connecting rod bearing damage in the S54 to a complete V8 rebuild.
Not based near Oberhausen? No problem: Shipping your engine to us — how it works.
Every Wiesmann, every engine.
Between 1993 and 2014, 1,599 vehicles were built in Dülmen — all with BMW engines. Here’s an overview of which unit powers your model and what we overhaul on it.
The straight-six from the BMW 330i (E46) — robust, but known for oil consumption via the crankcase ventilation and worn VANOS seal rings. Routine work for us.
The high-revving M3 engine from the E46 — the best-known Wiesmann powertrain. Classics: connecting rod bearings and VANOS.
To the MF3 detail page →
The naturally aspirated V8 from the 550i/750i. Typical: blue smoke from hardened valve stem seals and leaks at the coolant pipe. We fix both permanently on the removed engine.
The “hot-V” biturbo — very well known to us: valve stem seals, timing chain, oil consumption. One of the most frequently overhauled engines in our shop.
The high-revving V8 from the M3 E92 — and like its little brother the S54, a candidate for connecting rod bearing wear.
To the M-engines detail page →
Until 2010 the S85 V10 from the M5/M6 (only 43 Roadsters built!), after that the S63 biturbo from the X5M/X6M. We’ve already overhauled an S85 in-house — connecting rod bearings are a must-check here.
Note on Gecko & Thunderball
The comeback project Gecko (BMW M V8 biturbo) was delivered only in tiny numbers, and Project Thunderball is fully electric. For questions about these vehicles, please contact us directly.
What actually breaks Wiesmann engines.
Wiesmann vehicles are often driven little but hard — and stand idle for long periods. Both are poison for bearings and seals. The failure patterns are the same as in the donor BMW vehicles, sometimes worsened by long standing times.
Further reading: Connecting rod bearings on BMW M engines · Timing chain replacement — cost & process.
Two ways to reach us — vehicle or engine.
You can have your vehicle brought to Oberhausen by enclosed transport — or your workshop removes the engine and ships it to us. Either way follows the same process:
What does it cost — calculated honestly?
The engine technology is mass-production — so we don’t bill Wiesmann engines with an “exotic surcharge”, but like the corresponding BMW engine. For orientation:
Questions from Wiesmann owners.
Does Motorschmiede also repair Wiesmann vehicles?
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Yes — the engine. Every Wiesmann with a combustion engine uses a mass-production BMW unit (M54, S54, N62, S65, S85 or N63/S63), and these are exactly the engines we specialise in. We don’t carry out bodywork, upholstery or Wiesmann-specific electrical work; for these we’re happy to work with specialist workshops on request.
What does an engine overhaul cost on a Wiesmann?
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Since the engine technology is BMW mass production, the costs match those of the respective BMW engine — no exotic surcharge. A preventive connecting rod bearing replacement is significantly cheaper than a complete overhaul after major damage. After teardown and assessment, you receive a binding fixed-price quote.
Can I ship the removed engine to you?
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Yes. Your local workshop removes the engine and ships it to us in Oberhausen on a pallet — nationwide and across Europe. After the overhaul, the engine goes back the same way and is reinstalled on site.
Which Wiesmann engines cause the most problems?
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With the M engines S54, S65 and S85, connecting rod bearings are the best-known wear issue. The naturally aspirated and biturbo V8s N62 and N63 tend towards leaking valve stem seals with blue smoke and oil consumption, and the N63 additionally to timing chain wear. On top of that, all engines can suffer standing damage from long seasonal breaks.
Is the overhaul economically worthwhile?
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As a rule, yes. Depending on the model, Wiesmann vehicles achieve high five- to six-figure market values, replacement engines are practically unavailable, and the overhauled original engine (matching numbers) preserves the collector value. A documented engine overhaul is a plus point on resale, not a flaw.
Do you have experience with high-performance BMW M engines?
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Yes — the S54, S65 and even the S85 V10 have already been overhauled by us. Connecting rod bearing replacements on M engines are among our most frequent jobs, so we have the measuring tools, torque specifications and experience for these units on hand.
How long does an engine overhaul take?
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That depends on the assessment and parts availability. After teardown, we give you a binding timeframe together with the fixed-price quote. For seasonal vehicles, we recommend scheduling the overhaul during the winter break.
Your Wiesmann
deserves its original engine.
Tell us the model, engine and symptoms — ideally with a video or audio recording of the noise. We usually get back to you within 24 hours on business days with an initial assessment.