Hello friends, I urgently need your help with my B37-engined 1.16d (Automatic) at 156,000 km. Problem Summary and Symptoms: On normal driving it shifts gears at 2,000 rpm, but when I suddenly floor it (kick-down), the car doesn't accelerate; the rev counter climbs to 4,000-5,000 rpm and it shifts with difficulty, straining. Fault Codes Found: The codes read via OBD point directly to the Swirl Flap mechanism: • 2C3200: Swirl flap mechanically faulty (lever breakage detected) • 279100: Swirl flap mechanically faulty (during offset learning) • 29EB00: EGR cooler bypass valve faulty or cooler efficiency low. (I attached the fault codes as an image) Work Done and Result: Since the fault codes pointed to carbon buildup on the Swirl Flaps, I removed the intake manifold's upper cover and thoroughly cleaned the flaps/their bearings. I cleared the codes, but they came right back. What I Need Help With: The fact that the 2C3200 code (lever breakage) in particular persists even after cleaning makes me think this isn't simple carbon buildup, but a serious mechanical or electrical fault. Where do you think the problem could be in this case? 1. Flap Shaft/Lever Breakage: Is there an overlooked broken flap shaft or lever inside the cover? (Matches the 2C3200 code exactly.) 2. Swirl Flap Actuator Motor Fault: Could the motor that moves the flaps itself be faulty? 3. Could the 29EB00 (EGR) code also be causing this performance restriction? I'm hoping for guidance from anyone with experience with the B37 engine and these specific codes (especially 2C3200). Which part should I focus on directly? Thanks in advance!
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