.sl-desc h2{font-size:1.15em;letter-spacing:.06em;text-transform:uppercase;border-bottom:2px solid #111;padding-bottom:6px;margin:1.6em 0 .7em}.sl-desc h3{font-size:1em;margin:1.2em 0 .4em}.sl-desc ul{margin:0 0 1em 1.2em}.sl-desc li{margin:.25em 0}.va-table{width:100%;border-collapse:collapse;margin:.5em 0 1em;font-size:.95em}.va-table th{text-align:left;padding:10px 8px;border-bottom:2px solid #333;white-space:nowrap}.va-table td{padding:8px;border-bottom:1px solid #e5e5e5;vertical-align:top}.sl-note{font-size:.9em;color:#555;margin:.4em 0 1em} OVERVIEW CSF’s all-aluminum replacement radiator for the E-chassis BMW runs a 2-row 42mm dual core built around CSF’s exclusive B-Tube technology. The core uses an ultra-efficient fin with 6.5mm fin height and a multi-louvered design for maximum surface area contact, so it rejects far more heat than the plastic-tank OEM radiator it replaces. Everything that bolts to it is machined rather than molded: CNC-machined “quick-connect” inlet and outlet connections, CNC-machined brackets and fittings for fit and durability, and an all-aluminum race-style drain plug. It is a drop-in fit requiring no modifications and accepts all attaching OEM components, including the quick-connect hoses, AC condenser, mounting brackets and fan shroud. Two versions are offered because the two transmissions use different radiators: CSF #7045 for manual transmission cars and CSF #7046 for automatic and dual-clutch cars. Choose the variant that matches your car. SPECS 2-row 42mm core (dual core) featuring CSF’s exclusive B-Tube technology Ultra-efficient fin with 6.5mm fin height and multi-louvered design for maximum surface area contact CNC-machined “quick-connect” inlet/outlet connections CNC-machined brackets and fittings for fit and durability All-aluminum race-style drain plug Smooth satin finish “Drop-in fit” requiring no modifications to install — accepts all attaching OEM components including “quick-connect” hoses, AC condenser, mounting brackets and fan shroud Manual transmission version (#7045) replaces BMW OEM 17117558480 Automatic transmission version (#7046) replaces BMW OEM 17117547059 2-year limited warranty PARTS INCLUDED One (1) CSF all-aluminum radiator with CNC-machined brackets, quick-connect fittings and race-style drain plug Complete kit as supplied by CSF Radiators; see the installation instructions supplied in the box for the full bill of materials. TECH RESOURCES Additional Parts Required None. CSF Radiators specifies no additional hardware for this part — it is a drop-in replacement that reuses the OEM quick-connect hoses, AC condenser, brackets and fan shroud. Service items you supply: fresh BMW-spec coolant to refill and bleed the system after the swap. Order the variant that matches your transmission: #7045 for manual transmission cars, #7046 for automatic and dual-clutch cars. Installation CSF does not publish a downloadable installation PDF for this part. Printed installation instructions are supplied in the box with the radiator. Professional installation is recommended. Contact Speed Logic if you need help confirming fitment or sourcing OEM service parts before you start. Notes CSF catalogs #7045 and #7046 across both N54 and N55 E-chassis cars, and its current fitment table adds the E82 1M and the E89 Z4 to the applications shown in earlier store copy; the E89 Z4 and E84 X1 entries in particular should be confirmed with Speed Logic against your chassis and transmission before ordering. CSF now specifies a smooth satin finish for these radiators — earlier store copy described a hand-polished mirror finish. PART NUMBER 7045 — manual transmission 7046 — automatic / dual-clutch transmission VEHICLE APPLICATIONS Make Model Chassis Engine Years BMW 1 Series M Coupe E82 N54 3.0L Twin-Turbocharged I6 2011 BMW 135i Coupe E82 N54 / N55 3.0L Turbocharged I6 2008–2013 BMW 135is Coupe E82 N55 3.0L Turbocharged I6 2013 BMW 135i Convertible E88 N54 / N55 3.0L Turbocharged I6 2008–2013 BMW 335i Sedan E90 N54 / N55 3.0L Turbocharged I6 2007–2011 BMW 335xi Sedan E90 N54 / N55 3.0L Turbocharged I6 2007–2011 BMW 335i Touring E91 N55 3.0L Turbocharged I6 2007–2012 BMW 335xi Touring E91 N55 3.0L Turbocharged I6 2007–2012 BMW 335i Coupe E92 N54 / N55 3.0L Turbocharged I6 2008–2013 BMW 335i Convertible E93 N54 / N55 3.0L Turbocharged I6 2008–2013 BMW X1 xDrive35i E84 N55 3.0L Turbocharged I6 2013–2015 BMW Z4 sDrive35i E89 N54 3.0L Twin-Turbocharged I6 2009–2016 BMW Z4 sDrive28i E89 2.0L Turbocharged I4 2012–2016
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