diff --git a/test/e2e/qa-lab/runtime/qa-otel-smoke-runtime.ts b/test/e2e/qa-lab/runtime/qa-otel-smoke-runtime.ts
index 1210e8a49dc..94462bf9691 100644
--- a/test/e2e/qa-lab/runtime/qa-otel-smoke-runtime.ts
+++ b/test/e2e/qa-lab/runtime/qa-otel-smoke-runtime.ts
@@ -159,6 +159,25 @@ const MAX_STDOUT_DIAGNOSTIC_LINE_BYTES = readPositiveIntegerEnv(
   512 * 1024,
 );
 const GATEWAY_STDOUT_ARTIFACT_READ_CHUNK_BYTES = 64 * 1024;
+const QA_OTEL_ENV_TO_CLEAR = [
+  "OTEL_SDK_DISABLED",
+  "OTEL_TRACES_EXPORTER",
+  "OTEL_METRICS_EXPORTER",
+  "OTEL_LOGS_EXPORTER",
+  "OTEL_EXPORTER_OTLP_ENDPOINT",
+  "OTEL_EXPORTER_OTLP_TRACES_ENDPOINT",
+  "OTEL_EXPORTER_OTLP_METRICS_ENDPOINT",
+  "OTEL_EXPORTER_OTLP_LOGS_ENDPOINT",
+  "OTEL_EXPORTER_OTLP_PROTOCOL",
+  "OTEL_EXPORTER_OTLP_TRACES_PROTOCOL",
+  "OTEL_EXPORTER_OTLP_METRICS_PROTOCOL",
+  "OTEL_EXPORTER_OTLP_LOGS_PROTOCOL",
+  "OTEL_EXPORTER_OTLP_HEADERS",
+  "OTEL_EXPORTER_OTLP_TRACES_HEADERS",
+  "OTEL_EXPORTER_OTLP_METRICS_HEADERS",
+  "OTEL_EXPORTER_OTLP_LOGS_HEADERS",
+  "OTEL_RESOURCE_ATTRIBUTES",
+] as const;
 
 function readPositiveIntegerEnv(
   name: string,
@@ -1426,9 +1445,9 @@ function relayParentSignalsToChild(child: ChildProcess): () => void {
 
 function buildQaEnv(port: number): NodeJS.ProcessEnv {
   const env = { ...process.env };
-  delete env.OTEL_SDK_DISABLED;
-  delete env.OTEL_TRACES_EXPORTER;
-  delete env.OTEL_EXPORTER_OTLP_ENDPOINT;
+  for (const key of QA_OTEL_ENV_TO_CLEAR) {
+    delete env[key];
+  }
   env.OTEL_EXPORTER_OTLP_TRACES_ENDPOINT = `http://127.0.0.1:${port}/v1/traces`;
   env.OTEL_EXPORTER_OTLP_METRICS_ENDPOINT = `http://127.0.0.1:${port}/v1/metrics`;
   env.OTEL_EXPORTER_OTLP_LOGS_ENDPOINT = `http://127.0.0.1:${port}/v1/logs`;
@@ -1910,6 +1929,7 @@ export const testing = {
   appendGatewayStdoutArtifactLogs,
   appendCapturedBodyText,
   assertSmoke,
+  buildQaEnv,
   createBoundedTextAccumulator,
   createStdoutDiagnosticLogCapture,
   decodeRequestBody,
diff --git a/test/e2e/qa-lab/runtime/qa-otel-smoke.e2e.test.ts b/test/e2e/qa-lab/runtime/qa-otel-smoke.e2e.test.ts
index f3f26ae9881..085092133ba 100644
--- a/test/e2e/qa-lab/runtime/qa-otel-smoke.e2e.test.ts
+++ b/test/e2e/qa-lab/runtime/qa-otel-smoke.e2e.test.ts
@@ -7,9 +7,14 @@ import os from "node:os";
 import path from "node:path";
 import { setTimeout as delay } from "node:timers/promises";
 import { gzipSync } from "node:zlib";
-import { beforeAll, describe, expect, it, vi } from "vitest";
+import { afterEach, beforeAll, describe, expect, it, vi } from "vitest";
 import { testing } from "./qa-otel-smoke-runtime.js";
 
+afterEach(() => {
+  vi.unstubAllEnvs();
+  vi.restoreAllMocks();
+});
+
 describe("qa-otel-smoke receiver bounds", () => {
   let configuredBodyLimitLoad: ReturnType<typeof spawnSync>;
 
@@ -171,6 +176,40 @@ describe("qa-otel-smoke receiver bounds", () => {
     expect(configuredBodyLimitLoad.stderr).not.toContain("ReferenceError");
   });
 
+  it("scrubs inherited OpenTelemetry exporter env before running the QA suite", () => {
+    vi.stubEnv("OTEL_SDK_DISABLED", "true");
+    vi.stubEnv("OTEL_TRACES_EXPORTER", "none");
+    vi.stubEnv("OTEL_METRICS_EXPORTER", "none");
+    vi.stubEnv("OTEL_LOGS_EXPORTER", "none");
+    vi.stubEnv("OTEL_EXPORTER_OTLP_ENDPOINT", "http://collector.example.test:4318");
+    vi.stubEnv("OTEL_EXPORTER_OTLP_PROTOCOL", "grpc");
+    vi.stubEnv("OTEL_EXPORTER_OTLP_TRACES_PROTOCOL", "grpc");
+    vi.stubEnv("OTEL_EXPORTER_OTLP_METRICS_PROTOCOL", "grpc");
+    vi.stubEnv("OTEL_EXPORTER_OTLP_LOGS_PROTOCOL", "grpc");
+    vi.stubEnv("OTEL_EXPORTER_OTLP_HEADERS", "authorization=secret");
+    vi.stubEnv("OTEL_EXPORTER_OTLP_LOGS_HEADERS", "authorization=logs-secret");
+    vi.stubEnv("OTEL_RESOURCE_ATTRIBUTES", "deployment.environment=developer-laptop");
+
+    const env = testing.buildQaEnv(4318);
+
+    expect(env.OTEL_SDK_DISABLED).toBeUndefined();
+    expect(env.OTEL_TRACES_EXPORTER).toBeUndefined();
+    expect(env.OTEL_METRICS_EXPORTER).toBeUndefined();
+    expect(env.OTEL_LOGS_EXPORTER).toBeUndefined();
+    expect(env.OTEL_EXPORTER_OTLP_ENDPOINT).toBeUndefined();
+    expect(env.OTEL_EXPORTER_OTLP_PROTOCOL).toBeUndefined();
+    expect(env.OTEL_EXPORTER_OTLP_TRACES_PROTOCOL).toBeUndefined();
+    expect(env.OTEL_EXPORTER_OTLP_METRICS_PROTOCOL).toBeUndefined();
+    expect(env.OTEL_EXPORTER_OTLP_LOGS_PROTOCOL).toBeUndefined();
+    expect(env.OTEL_EXPORTER_OTLP_HEADERS).toBeUndefined();
+    expect(env.OTEL_EXPORTER_OTLP_LOGS_HEADERS).toBeUndefined();
+    expect(env.OTEL_RESOURCE_ATTRIBUTES).toBeUndefined();
+    expect(env.OTEL_EXPORTER_OTLP_TRACES_ENDPOINT).toBe("http://127.0.0.1:4318/v1/traces");
+    expect(env.OTEL_EXPORTER_OTLP_METRICS_ENDPOINT).toBe("http://127.0.0.1:4318/v1/metrics");
+    expect(env.OTEL_EXPORTER_OTLP_LOGS_ENDPOINT).toBe("http://127.0.0.1:4318/v1/logs");
+    expect(env.OTEL_SERVICE_NAME).toBe("openclaw-qa-lab-otel-smoke");
+  });
+
   it("rejects identity OTLP bodies above the decoded byte ceiling", () => {
     expect(() => testing.decodeRequestBody(Buffer.alloc(65), undefined, 64)).toThrow(
       "OTLP request body exceeded 64 bytes: 65 bytes",