How to identify a 2002tii exhaust manifold
We are asked many times how to identify a 2002tii exhaust manifold. There seems to be several for sale which appear similar but are not. For example:
What is the difference between the exhaust manifolds fitted to tii’s and standard 2002′s? Were the original castings the same or was there a difference in the casting? Also, have the manifolds changed; i.e., are new replacement manifolds the same as those originally fitted to tii’s? Currently, the tii exhaust manifold seems to be the only manifold available through Mobile Tradition (excluding the thermal reactor which is also available – for $2000!). What’s up with that? -Jerry
The good news is that adding the tii manifold to any BMW 2002 engine will improve the performance in terms of gas mileage and horsepower because of better flow. The original manifolds, especially the 1975-1976 models were restrictive to meet early EPA pollution standards and eventually warp the head due to the extreme heat produced by them compared to the original design.
When you place the old style and any 2002tii manifolds side by side, it is easy to tell the differences. As the saying goes, a picture is worth 1,000 words.
Click the photo to see the full resolution photo.
During the production of the original Shop Manual, BMW produced electronic copies of the original electrical diagrams. If you have a problem and need to troubleshoot your wiring harness, these are real time savers in resolving electrical gremlins.
FUEL INJECTED CAR DIAGRAMS
2002 12 Fuse Models – Electrical Overview – Lighting and Relay Circuits
2002tii Fuel Injection System Overview
2002tii Models (all except U.S.A.)
2002tii USA Model 71 (1972-1973, VIN 276XXXX)
2002tii USA Model 74 (1974, VIN 278XXXX)
CARBURETOR CAR DIAGRAMS
- Euro Model production
1600, 1800, 2000, 2000a Touring – Euro models
2002 Euro Model, 1967-1969 Production build
2002, 2002a – Pre 71, Euro Model
1602, 1802, 2002, 2002a Model 71 – Euro
1502 Euro Model (includes Turbo)
- USA Model production
2002, 2002a – Pre 71, USA Model
1602, 1802, 2002, 2002a Model 71 – USA
2002 Model 75 USA (titled as 1975 year)
2002 Model 76 USA (titled as 1976 year)


