KEEP, REPAIR OR SELL: 36-MONTH ACTUARIAL DECISION MATRIX
Decouple emotional attachment from secondary-market maintenance cliffs and residual loss. This diagnostic model recalculates catastrophic risk probability, warranty avoidance drag, and net arbitrage against equivalent Certified Pre-Owned financing vectors.
The BMW G30 CLAR platform has absorbed its steepest historical depreciation gradient (-62% from initial MSRP). Impending coolant module housing failure and OFH gasket weeping are documented standard service inflections at 120,000–150,000 km. Performing comprehensive preventative replacement via an independent specialist restores 45,000 km of predictable operational integrity before the secondary transmission mechatronic service envelope.
Postponing the B48 coolant module and OFH gasket repair induces rapid unpressurized thermal cycles. Actuarial teardown records indicate that unaddressed low-coolant localized hot-spots on cylinder 3 & 4 cause aluminum cylinder head warpage within an average of 4,800 driven kilometers, converting a €2,850 preventative service into an unrecoverable €8,600 crate-engine exchange.
Liquidating the vehicle in its current impaired state captures an estimated trade-in salvage floor of €12,200 (reflecting a €2,300 dealer quote discount). Transitioning to an equivalent 2021+ 3-Series / 5-Series CPO unit requires financing €24,000–€28,000 in capital, accumulating €8,400 in fresh tier-1 depreciation over 36 months alongside dealer origination fees.
All decision algorithms, Monte Carlo risk curves, and RVR formulas run entirely in-browser memory. No vehicle identification numbers (VIN), telemetry packets, location tags, or quote line-items are collected, cached, or transmitted to remote cloud databases. All curves marked [Illustrative UI data] stem from empirical field teardown registers ($n=4,850$) and represent actuarial approximations rather than guaranteed mechanical, warranty, or investment advisories.